Prove+congruent+triangles,+SAS,+SSS,+ASA,+AAS

The congruent triangles document contains where this lesson is in the core as well as vocabulary and previous knowledge.

Day 1 For this lesson I have the students break into groups of 4 and let them play the game UNO for about 10-15 minutes. They must play with the strict rules of UNO, ie. they cannot keep stacking draw 2's on top of each other, or exchange hands, etc. After they have played UNO I hand out the UNO worksheet. I go through the example with them and then let them work on the rest of it.

Day 2 I remind the students of the UNO worksheet and then hand out the Prove Congruent Triangles Worksheet. I work through the first problem with the kids then I have them work in groups on the next problem, bring them together and have them fill it out as a class. I slowly unscaffold each problem as the students understanding and confidence increases.