Solution:

36. Sample response:

Goals:

Represent sums and differences on a number line.

Item & scoring guidance:

This item is worth 1 point and will automatically score.
- The draw item will not factor into the score but can be manually scored.

Responding to Student Thinking

Students show they understand how to represent subtraction with the direction of the jump, but do not yet accurately understand the starting point, ending point, and/or ways to use the size of the jump to represent counting on or back by groups of 10 or 1.

During the Number Talk warm-ups in the next unit, monitor for the ways students think about getting to friendly numbers and the ways they use groups of 10 or 1 when counting on or back. Use the structure of the number line to illustrate and record student thinking. Invite other students to explain how the diagram matches the expression.

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Checkpoint Scoring Guidance