This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each ■ = 10 items'). To find how many, count the symbols or squares and multiply by the scale. To identify the most or least, compare the calculated values. The graph shows items sold by grades with a scale where each ■ equals 10 items; Grade 1 has 3 symbols (30), Grade 2 has 4 (40), Grade 3 has 5 (50). Choice C is correct because Grade 3 has 5 symbols, multiplied by 10 to get 50 items, which is more than the others. This shows understanding of comparing scaled values. Choice D represents misreading the graph by not comparing properly, which typically happens because students confuse categories or forget to multiply. To help students: Use manipulatives to show how 1 symbol can represent multiple items (1 block = 10 items). Teach comparison strategy: find each value, then identify max or min. Watch for students who read from the wrong row or column.

This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each square = 5 points'). To find how many, count the symbols or squares and multiply by the scale. To compare categories, find each value then subtract to find the difference. The graph shows points scored with a scale where each square equals 5 points; Player B has 6 squares (30 points), Player D has 4 squares (20 points). Choice B is correct because Player B has 30 points and Player D has 20, subtracted 30 - 20 = 10 points difference. This shows understanding of finding differences on scaled bar graphs. Choice A represents forgetting to multiply by the scale and just subtracting squares, which typically happens because students count squares without applying the scale. To help students: Practice creating simple scaled graphs together, emphasizing the scale key. For two-step problems, break into steps (first find each value, then do operation). Watch for arithmetic errors or misreading the scale.

This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each $= 2$ birds'). To find how many, count the symbols or squares and multiply by the scale. To compare categories, find each value then subtract to find the difference. The graph shows birds seen with a scale where each equals 2 birds; sparrows have 6 symbols (12 birds), robins have 3 symbols (6 birds). Choice C is correct because sparrows have 12 birds and robins have 6, subtracted $12 - 6 = 6$ fewer robins. This shows understanding of 'how many fewer' on scaled graphs. Choice A represents an arithmetic error like dividing instead of multiplying, which typically happens because students misapply the scale. To help students: Teach comparison strategy: find value A, find value B, subtract smaller from larger, answer 'X more' or 'X fewer.' Use graph paper and let students create their own scaled graphs to reinforce concept. Watch for students who confuse 'more' and 'less' or read the wrong category.

This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each ⭐ = 5 votes'). To find how many, count the symbols or squares and multiply by the scale. The graph shows favorite fruits with a scale where each ⭐ equals 5 students; apples have 3 stars. Choice B is correct because there are 3 stars for apples, multiplied by the scale of 5 to get 15 students. This shows understanding of reading scaled picture graphs. Choice C represents the error of counting the symbols without multiplying by the scale, which typically happens because students forget to apply the scale and just count the number of symbols. To help students: Practice creating simple scaled graphs together, emphasizing the scale key. Use manipulatives to show how 1 symbol can represent multiple items (1 block = 5 students). Watch for students who count symbols without multiplying by scale.

This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each ★ = 5 students'). To find how many, count the symbols or squares and multiply by the scale. For totals, sum the values across categories. The graph shows favorite colors with a scale where each ★ equals 5 students; there are a total of 9 stars across all colors. Choice C is correct because there are 9 stars total, multiplied by the scale of 5 to get 45 students. This shows understanding of summing scaled values. Choice D represents counting the stars without multiplying by the scale, which typically happens because students forget to apply the scale. To help students: Use manipulatives to show how 1 symbol can represent multiple items (1 block = 5 students). For two-step problems, break into steps (first find each value, then sum). Watch for students who add symbols instead of values.

This question tests 3rd grade data interpretation: reading and interpreting scaled picture graphs and scaled bar graphs, and solving 'how many more' and 'how many less' problems (CCSS.3.MD.3). A scaled graph uses symbols or bars where each represents more than one item. The scale tells us what value each symbol or square represents (like 'each square = 5 days'). To find how many, count the symbols or squares and multiply by the scale. For totals, sum the values across categories. The graph shows weather types with a scale where each square equals 5 days; there are a total of 6 squares across all categories. Choice B is correct because there are 6 squares total, multiplied by the scale of 5 to get 30 days. This shows understanding of summing scaled values. Choice D represents an arithmetic error like multiplying incorrectly, which typically happens because students misread the scale or miscount squares. To help students: Practice creating simple scaled graphs together, emphasizing the scale key. For two-step problems, break into steps (first find each value, then do operation). Watch for students who struggle with partial symbols (half symbol = half the scale value).