I am not progressing in order anymore. I plan to start unit 3 and then assign some of this unit as homework while we continue to work through unit 2.
I followed the lego activity using unifix cubes.
Students worked in pairs and wrote descriptions of their cube arrangement, then we rotated descriptions and each pair tried to construct their peers cube arrangement. Every single group was unsuccessful, so we decided to return the descriptions to the original groups for them to improve their written descriptions. This time a few groups had success.
We followed with a discussion and then they answered the bubble questions.
It only took about 60 minutes. Next year, I should plan to teach lessons 1 and 2 in one block period.