As you will notice I don't always stick to the idea of putting information on the right page and student reflection on the left. Sometimes, I just have more to show them than that, and sometimes I have more reflecting and practicing for them to do than will fit on one page.
Our textbook also introduces tessellations at this point, so I included the definition on this page. It ties the polygon lessons with the notebook entries for transformations.
The regular polygons I used in the T-chart above were copied from a page in Getting Smarter Every Day Book E Grades 6-8. I love this book and use several pages from it for various activities. I also used this book forinteractive notebook pages on transformations and tessellations. There are versions of this book for various grade level groupings.