Grade 1 Math Unit 2: Compare Story Problems — Quiz

Multiple-Choice Questions

1. What is the main topic of Section C in this unit?
A. Adding two-digit numbers
B. Compare Story Problems
C. Measuring length with rulers
D. Telling time to the hour

2. In kindergarten, what language did students use to compare quantities?
A. "Greater than" and "less than"
B. "1 more" and "1 less/fewer"
C. "Equal to" and "not equal to"
D. "Plus" and "minus"

3. Which type of story problem do students solve in this section?
A. Put Together/Take Apart, Total Unknown
B. Add To, Change Unknown
C. Compare, Difference Unknown
D. Take From, Result Unknown

4. What materials are gathered for use in Lesson 11 activities?
A. Rulers and protractors
B. 10-frames, connecting cubes, and two-color counters
C. Number lines and dice
D. Pattern blocks and geoboards

5. What strategy do the contexts in this section intentionally elicit from students?
A. Skip counting strategies
B. Matching strategies
C. Rounding strategies
D. Mental math strategies

6. According to the Narrative, what makes Compare problems challenging compared to other problem types?
A. They require multiplication
B. One quantity (the difference) is not physically present, and the language can be complex
C. They only involve subtraction
D. They require use of a calculator

7. What instructional routine is used in the Warm-up for Lesson 11?
A. Choral Counting
B. Act It Out
C. Number Talk
D. Which One Doesn't Belong

8. In the example with Clare's and Andre's cube towers, how many cubes were matched?
A. 2
B. 3
C. 4
D. 5

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Short-Answer Questions

9. In the practice problem, there are 10 bats in the cave and 8 bats flying outside. Are there fewer bats in the cave or flying outside, and how many fewer?

10. Explain two different ways a student could find how many more cubes are in Jada's tower (8 cubes) compared to Mai's tower (2 cubes).

11. According to the Goals for Section C, what two things should students be able to do by the end of this section?

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Answer Key

1. B — Compare Story Problems
2. B — "1 more" and "1 less/fewer"
3. C — Compare, Difference Unknown
4. B — 10-frames, connecting cubes, and two-color counters
5. B — Matching strategies
6. B — One quantity (the difference) is not physically present, and the language can be complex
7. B — Act It Out
8. C — 4

1. There are fewer bats flying outside; there are 2 fewer bats flying outside than in the cave.

1. Sample response: (1) Draw 2 cubes and add 6 more cubes to make a tower of 8, then count the added cubes. (2) Draw a tower of 8 cubes, cross off 2 of them (to match Mai's tower), and count the remaining cubes.

1. Students should be able to (1) relate addition and subtraction, and (2) solve Compare, Difference Unknown story problems.