Clip 12/13: Standard 2: Reason Abstractly & Quantitatively Using Rate of Change Part 3B
Overview
Mathematically proficient students make sense of quantities and their relationships in problem situations… Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects.
Antoinette Villarin asks her students to engage in a gallery walk, in which one of the student partners will travel with a copy of their recording sheet of matches and justifications, comparing their thinking to that of other pairs, and the other partner will stay at their table and engage in conversation with visitors from other pairs.
Antoinette charges her students to be alert for differences in thinking and to make modifications to their recording sheets if necessary. She also reminds students to be especially attentive to other groups’ approaches to matching the three cards that had partial or missing information.
As she closes the day’s learning, Antoinette asks the students who returned from the gallery walk and sharing to describe their findings to their partners. The pairs work together, discussing and justifying modifications to their recording sheets.
See this video in the context of an entire lesson.
Lesson Parts 3B and 3C