- Keisha looks for a math book, but desk books are mixed up. Which best describes the problem?
Answer: Students need a way to find the right book quickly in their desks.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Keisha is looking for her math book, but all the books in her desk are mixed together, making it hard to find the specific book she needs quickly. Choice A is correct because it clearly defines the problem as needing a way to find the right book quickly in their desks, which suggests designing a tool like book dividers, labels, or an organizational system. Choice B represents describing observations rather than defining the problem, which happens when students state what they see (desk looks messy, books have bright covers) instead of identifying what functional need exists. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (books are mixed up) and problems (need way to find books quickly). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to find books quickly' not 'need labels.' Have students observe situations and practice stating problems clearly.
- Carlos carries lunch, but food slides and forks fall. What does he need a tool to do?
Answer: A tool should keep lunch items in place on the tray.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Carlos is carrying his lunch on a tray, but food items slide around and utensils like forks fall off, making it difficult to transport his meal safely. Choice A is correct because it clearly states what the tool needs to do—keep lunch items in place on the tray—which directly addresses the problem and guides the design of a solution like compartments, raised edges, or grips. Choice B represents an unrelated goal that doesn't address the actual problem, which happens when students suggest what would be nice to have (better taste) instead of focusing on what the tool needs to do to solve the specific problem (prevent sliding and falling). To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (food slides) and problems (need way to keep items stable). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need to keep items in place' not 'need dividers.' Have students observe situations and practice stating problems clearly.
- Maya saw swing arguments. What problem could a tool help solve?
Answer: Kids need a way to remember whose turn is next.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Maya saw arguments over swings, where kids forget whose turn is next, leading to disputes during playtime. Choice A is correct because it identifies the specific problem of needing a way to remember whose turn is next, which clearly suggests designing a timer or sign-up tool. Choice C represents a common error of behavioral instruction, which happens when students suggest just sharing nicely instead of defining a problem solvable by a tool. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (arguments happen) and problems (need way to track turns). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to remember turns' not 'need a timer.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a list) instead of problems (we need way to remember), or who are too vague (kids fight) to guide solution development.
- Marcus saw milk tip over. What does the class need a tool to do?
Answer: Students need a way to keep lunch items from sliding.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Marcus saw milk tip over, where lunch items like milk slide and tip on trays while students walk, causing spills. Choice A is correct because it identifies the specific problem of needing a way to keep lunch items from sliding, which clearly suggests designing stabilizers or compartments. Choice C represents a common error of suggesting a decorative solution, which happens when students propose a new tray with decorations instead of defining the stability issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk tips over) and problems (need way to keep items stable). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to prevent sliding' not 'need a tray with dividers.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need grips) instead of problems (we need way to secure items), or who are too vague (lunch spills) to guide solution development.
- Jamal saw brushes fall. Which best defines the problem in art class?
Answer: Paint brushes fall off tables and make a mess.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Jamal saw brushes fall, where paint brushes fall off tables during art class, creating messes and interrupting activities. Choice B is correct because it identifies that paint brushes fall off tables and make a mess, which points to creating a holder or stand. Choice C represents a common error of jumping to a solution, which happens when students propose a specific design like building a brush holder instead of defining the underlying stability issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (brushes fall) and problems (need way to keep brushes stable). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'brushes fall off' not 'need a holder with holes.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a stand) instead of problems (we need way to prevent falling), or who are too vague (art is messy) to guide solution development.
- Sofia noticed a problem during outdoor learning. The class watches bugs, but they crawl away fast. This makes it hard for students to see them closely. Sofia said, "We need a tool to look safely." Which statement best describes the problem?
Answer: Students need a way to see bugs closely without them escaping.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. The problem definition guides our solution: if the problem is 'books fall out of desks,' we know we need something to hold books in place; if the problem is 'hard to carry multiple items without spilling,' we need something to keep items together and stable. In this scenario, the class is trying to observe bugs outdoors, but the bugs crawl away quickly, making it hard to see them up close. Choice A is correct because it identifies the specific problem of needing a way to view bugs safely without them escaping, which suggests designing a viewer or container. Choice B represents an exaggeration or impossibility, which happens when students make the problem seem unsolvable instead of defining it for a tool-based solution. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk spills) and problems (need way to keep milk stable while carrying). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to hold items' not 'need a tray with holes.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a box) instead of problems (we need way to organize), or who are too vague (something is wrong) to guide solution development.
- Keisha saw papers pile up. What is the problem to solve?
Answer: Finished papers have no place to go on desks.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Keisha saw papers pile up, where finished papers have no designated place on desks, leading to clutter and disorganization. Choice B is correct because it states that finished papers have no place to go on desks, which points to creating a bin or organizer. Choice C represents a common error of jumping to a solution, which happens when students propose a specific item like a new box instead of defining the storage issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (papers pile up) and problems (need place for finished papers). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'no place for papers' not 'need a box.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a tray) instead of problems (we need way to store papers), or who are too vague (desks are cluttered) to guide solution development.
- During art, Amir reaches for brushes and they roll off tables. What problem needs solving?
Answer: Students need a way to keep paint brushes from falling off tables.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, during art class, paint brushes roll off tables when students reach for them, causing paint to get on the floor and disrupting the art activity. Choice A is correct because it clearly defines the problem as needing a way to keep paint brushes from falling off tables, which suggests designing a tool like a brush holder, tray with edges, or clip to secure brushes. Choice B represents stating the result or symptom rather than the problem, which happens when students describe what they see (paint on floor, looks messy) instead of identifying what needs to be prevented or solved. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (paint on floor) and problems (need way to keep brushes from rolling). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to keep brushes in place' not 'need a holder.' Have students observe situations and practice stating problems clearly.
- Emma saw messy desks. What problem could a tool help solve?
Answer: Books fall out and are hard to find in desks.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Emma observed messy desks, where books keep falling out of desks, making it hard to find the right book and keeping desks disorganized. Choice B is correct because it states that books fall out and are hard to find in desks, which points to creating an organizer or divider. Choice A represents a common error of proposing a broad solution, which happens when students suggest changes like a bigger classroom instead of defining the specific organizational issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (desks are messy) and problems (need way to organize books). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'books fall out' not 'need more shelves.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need bigger desks) instead of problems (we need way to keep books in place), or who are too vague (desks are bad) to guide solution development.
- Sofia sees books fall out of desks and get lost. What problem could a tool solve?
Answer: The class needs a way to keep desk books organized and easy to find.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, books stored in students' desks fall out frequently and get lost or mixed up, making it hard for students to find the books they need. Choice A is correct because it states that students need a way to keep desk books organized and easy to find, which points to creating an organizer, divider, or holder that could fit inside desks. Choice B represents describing the situation and feelings rather than defining the problem, which happens when students state what they observe (books on floor) and how people feel (annoyed) instead of identifying what needs to be solved. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (books fall out) and problems (need way to organize books in desks). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to organize' not 'need a box.' Have students observe situations and practice stating problems clearly.
- At recess, Maya sees kids argue about swing turns. What is the problem to solve?
Answer: The class needs a way to keep track of whose swing turn is next.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, children at recess argue about whose turn it is to use the swings because there's no clear system for tracking turns. Choice A is correct because it identifies the specific problem of needing a way to keep track of whose swing turn is next, which clearly suggests designing a tool like a turn-taking board, timer, or number system. Choice B represents describing the symptoms and setting rather than defining the problem, which happens when students state what they observe (kids argue, playground feels crowded) instead of identifying what system or tool could solve the issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (kids argue) and problems (need way to track turns). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to track turns' not 'need a sign-up sheet.' Have students observe situations and practice stating problems clearly.
- Outside, Chen tries to watch bugs, but they crawl away fast. What problem is this?
Answer: Students need a way to look at bugs closely without them escaping.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, students are trying to observe bugs for science learning, but the bugs crawl away quickly before students can study them closely. Choice A is correct because it identifies the specific problem of needing a way to look at bugs closely without them escaping, which clearly suggests designing a tool like a bug viewer, observation container, or magnifying box with a lid. Choice B represents describing what happens without defining the problem, which happens when students state observations (bugs move quickly, students laugh) instead of identifying what needs to be solved to achieve their goal. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (bugs crawl away) and problems (need way to observe bugs without them escaping). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to observe' not 'need a jar.' Have students observe situations and practice stating problems clearly.
- Keisha noticed a problem at the art table. Brushes fall when students bump them. This makes paint spots and slows the class. Keisha said, "We need an object to keep brushes in place." What is the problem Keisha identified?
Answer: Students need a way to keep paint brushes from falling and making messes.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. The problem definition guides our solution: if the problem is 'books fall out of desks,' we know we need something to hold books in place; if the problem is 'hard to carry multiple items without spilling,' we need something to keep items together and stable. In this scenario, brushes fall off the art table when bumped, causing paint messes and slowing the class. Choice A is correct because it clearly defines the problem of needing to secure brushes, which suggests designing a holder to prevent falls. Choice B represents suggesting an alternative material, which happens when students jump to a different method instead of defining the problem for a tool solution. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk spills) and problems (need way to keep milk stable while carrying). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to hold items' not 'need a tray with holes.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a box) instead of problems (we need way to organize), or who are too vague (something is wrong) to guide solution development.
- Yuki sees finished papers pile on desks with no spot. What problem could a tool solve?
Answer: Students need a place to put finished papers until the teacher collects them.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, students finish their work but have no designated place to put completed papers, causing them to pile up on desks and create clutter. Choice A is correct because it identifies the specific problem of needing a place to put finished papers until the teacher collects them, which clearly suggests designing a tool like a turn-in tray, folder system, or collection box. Choice B represents describing the situation and feelings rather than defining the problem, which happens when students state what they observe (papers cover desks) and how people feel (rushed) instead of identifying what organizational need exists. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (papers pile up) and problems (need place for finished work). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need place for papers' not 'need a basket.' Have students observe situations and practice stating problems clearly.
- Yuki saw wet boots drip. What problem could an object help with?
Answer: Students need a way to stop boots from dripping in class.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Yuki saw wet boots drip, where snow or water from boots drips in class, creating wet floors and messes after recess. Choice A is correct because it identifies the specific problem of needing a way to stop boots from dripping in class, which clearly suggests designing a mat or holder. Choice B represents a common error of changing habits, which happens when students suggest wearing different shoes instead of defining a tool-solvable containment issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (boots drip) and problems (need way to stop dripping). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to contain drips' not 'need a boot tray.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need mats) instead of problems (we need way to prevent messes), or who are too vague (floors are wet) to guide solution development.
- Amir saw desks overflow. Which statement best describes the problem?
Answer: Students need a tool to keep desk books neat and easy.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Amir saw desks overflow, where books and materials overflow from desks, making them hard to keep neat and accessible. Choice B is correct because it states that students need a tool to keep desk books neat and easy, which points to creating an organizer while defining the need. Choice C represents a common error of jumping to a major solution, which happens when students propose building a new desk instead of defining the organizational problem. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (desks overflow) and problems (need way to keep books neat). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need tool for neat books' not 'need extra drawers.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need new desks) instead of problems (we need way to organize), or who are too vague (desks are full) to guide solution development.
- Amir noticed a problem on the playground. Kids argue about swings because turns are confusing. This makes recess unfair for many students. Amir said, "We need a tool to keep track." What is the problem to solve?
Answer: Students need a way to know whose turn is next on swings.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. The problem definition guides our solution: if the problem is 'books fall out of desks,' we know we need something to hold books in place; if the problem is 'hard to carry multiple items without spilling,' we need something to keep items together and stable. In this scenario, kids argue about whose turn it is on the swings because tracking turns is confusing, making recess unfair. Choice A is correct because it identifies the need for a way to track turns, which suggests designing a timer or sign-up tool. Choice B represents an unrelated behavioral issue, which happens when students confuse the core problem with secondary distractions. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk spills) and problems (need way to keep milk stable while carrying). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to hold items' not 'need a tray with holes.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a box) instead of problems (we need way to organize), or who are too vague (something is wrong) to guide solution development.
- Chen watched bugs crawl away. What problem needs an object or tool?
Answer: Students need a way to see bugs closely without escape.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, Chen watched bugs crawl away, where students are trying to observe bugs closely, but the bugs escape before they can be studied properly. Choice A is correct because it identifies the specific problem of needing a way to see bugs closely without escape, which clearly suggests designing a container or viewer. Choice B represents a common error of overgeneralizing, which happens when students state an unrealistic goal like catching every bug instead of defining a solvable observation issue. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (bugs crawl away) and problems (need way to observe without escape). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to see closely' not 'need a bug jar.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need nets) instead of problems (we need way to contain bugs), or who are too vague (bugs are fast) to guide solution development.
- Yuki noticed a problem after snowy recess. Wet boots drip water onto the classroom floor. This makes puddles and slippery spots for everyone. Yuki said, "We need an object to catch water." Which statement best describes the problem?
Answer: Students need a way to keep water from wet boots off the classroom floor.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. The problem definition guides our solution: if the problem is 'books fall out of desks,' we know we need something to hold books in place; if the problem is 'hard to carry multiple items without spilling,' we need something to keep items together and stable. In this scenario, wet boots drip water on the floor after snowy recess, creating slippery puddles. Choice A is correct because it defines the problem of needing to contain water from boots, suggesting a mat or tray. Choice B represents blaming activity, which happens when students suggest avoiding the situation instead of solving it with a tool. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk spills) and problems (need way to keep milk stable while carrying). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to hold items' not 'need a tray with holes.' Have students observe situations and practice stating problems clearly. Connect to real engineering: engineers define problems before designing solutions. Watch for students who state solutions (we need a box) instead of problems (we need way to organize), or who are too vague (something is wrong) to guide solution development.
- In the cafeteria, Jamal carries a tray, but milk tips over. What is the problem?
Answer: Students need a way to carry lunch items without spills.
This question tests 2nd grade ability to define simple problems that could be solved by objects or tools (NGSS K-2-ETS1-1: Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool). Defining a problem means clearly stating what is difficult, not working well, or causing issues. A good problem definition includes: what is happening (the situation), what makes it difficult (the challenge), who is affected, and what is needed (the goal). When we define problems in engineering, we focus on problems that can be solved by creating or improving an object or tool—something physical that can help. In this scenario, students are carrying lunch trays in the cafeteria, but items like milk cartons tip over easily, causing spills and messes. Choice A is correct because it identifies the specific problem of needing a way to carry lunch items without spills, which clearly suggests designing a tool like a tray with compartments, holders, or barriers to keep items stable. Choice C represents jumping to a behavioral solution instead of defining a problem that needs a tool, which happens when students suggest what people should do differently (hold with two hands) rather than identifying what physical tool could help. To help students define problems: Use a problem definition template with questions: (1) What is happening? (2) What makes it difficult? (3) Who is affected? (4) What do we need? Practice with real classroom situations. Model the difference between symptoms (milk spills) and problems (need way to keep milk stable while carrying). Emphasize that good problem definitions are specific enough to guide solutions but don't jump to solutions yet—'need way to hold items' not 'need a tray with holes.' Have students observe situations and practice stating problems clearly.
