Jamal has April highs (Week 1: 45–55°F ... Week 4: 70–76°F); what should axes be?
- X-axis: temperature in °F; Y-axis: dates in April; connect points to show change. (correct answer)
- No axes are needed if the line graph has points drawn anywhere.
- X-axis: clouds; Y-axis: precipitation in inches; connect points for temperature change.
- X-axis: dates in April; Y-axis: temperature in °F; connect points to show change.
Explanation: This question assesses the 3rd grade skill of representing weather data in tables and graphs, aligned with NGSS 3-ESS2-1, which involves representing data to describe typical weather conditions during a particular season. Representing weather data means displaying collected information in organized formats like tables or graphs that make patterns easier to see and understand; tables organize data in rows and columns with clear labels, showing exact numbers for multiple variables, while graphs display data visually to highlight patterns at a glance, such as line graphs for trends over time, bar graphs for comparing categories, and pie charts for parts of a whole. Choosing the right representation depends on the data and pattern: use a line graph for changes over time, a bar graph for comparisons, or a table for detailed multi-variable data, always including titles, labels, units, and appropriate scales to make patterns visible. In this scenario, the weather data includes April high temperatures ranging from 45–55°F in Week 1 to 70–76°F in Week 4, showing a warming trend over the weeks. The appropriate representation would be a line graph because it connects points over time to reveal the temperature increase clearly. Choice A is correct because it specifies dates in April on the x-axis and temperature in °F on the y-axis, connecting points to show change, with essential features like proper axis labels and units; for example, this setup allows the line to slope upward, making the warming trend from early to late April visible and easy to understand. Choice B is incorrect because switching the axes with temperature on the x-axis and dates on the y-axis would not properly show the trend over time, a common error where students mix up axis assignments, leading to a graph that doesn't clearly reveal the pattern; effective representations place time on the x-axis for trends and include labels to make data interpretable. To help students represent weather data effectively, teach axis setup for line graphs: time like dates goes on the x-axis, and the variable like temperature on the y-axis, to show changes clearly. Practice with examples, having students label axes correctly and create graphs from data, emphasizing that wrong axes or missing labels make patterns hard to see.