Share
Pin it!
Google Plus




Subscriber? Sign in to access.


 

Building Intuitive Arguments for the Triangle Congruence Conditions

Katrina Piatek-Jimenez 

February 2008, Volume 101, Issue 6, Page 463

Abstract:
A hands-on activity that uses straws and pipe cleaners to explore and justify the triangle congruence conditions. The author uses the activities to explain when and why an idea is a postulate, theorem, accepted without need for proof, which ones need proof.

Keywords:
Article
Activities
Conceptual Development
Grades 9-12
Teacher
Manipulatives
Reasoning and Proof
Representation
Shapes
Similarity / Congruence