Our Rectangle section was pgs 66-71 in the Comprehensive Curriculum of Basic Skills for Preschool. We traced, colored and wrote the word rectangle as well as counted the sides and wrote the number 4. We also talked about what other shapes have four sides, specifically, squares and diamonds.
For our first application J sorted square and rectangular stamps. Once she was finished she got to play with them, of course!
Secondly, I had her make a rectangle using legos. She initially ended up with a square but eventually figured it out. This was a good problem solving activity.
Finally, some graham crackers for snacks!