. Grade 4, Illustrative icon

Comparing Growth, Variation 2

Illustrative MathematicsVaries

The purpose of this task is to assess students' understanding of multiplicative and additive reasoning. We would hope that students would be able to see identify that Student A is just looking at how many feet are being added on, while the Student B is comparing how much the snakes grew in comparison to how long they were to begin with. Some students will be more likely to agree with Student B when the difference in relative growth is accentuated as it is in the follow-up problem.

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