Clip 9/13: Calculating Volume of Rectangular Prisms Lesson Part 2B

As her 5th-grade students continue drawing the strategies that they used in each act of the Three-Act Task, Mallory circulates around the groups. Students use the printed image of the second act—the opened top of the box—annotating and drawing to indicate how their estimates were connected to what they observed. Mallory reminds them that “you wrote that there’s three columns and six rows, so we can show that as well… Draw arrows with a marker to indicate where the rows are and where the columns are.”