Opto Math

This exploration has proved to be an investigative, scaffolded introduction to the idea of triangle congruence. Over the years I have tried investigating this topic by use of patty paper, and that was good, but I felt there were too many moving parts for a 40 minute class period and learners who needed a bit more scaffolding. I like this exploration because it clearly defines the "parts" of the triangle needed to investigate each triangle shortcut. Students are working tangibly for this invest

This tessellations practice includes 6 questions about tessellations on one-page. There are two of each level of question, with each section getting progressively more challenging: shrimp, kiwi bird, dragon. This practice works well with my Tessellations Exploration and Tessellations Notes. I like to use my notes pages as a guided practice where we work one of each level together then I allow students to work on the other question of that level individually or in small groups/pairs.