Virtual cubes or other manipulatives: One option can be found here at Polypad
Instructions:
Work through all the questions and prompts.
When you are ready, select from the videos below of other teachers working through the task. As you listen to these teachers share their thinking about the mathematics, reflect on how your ideas are similar to and different from those of the teachers in the video.
Watch the video below to hear how using contexts help students with sense making.
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