GeoGebra Proofs: SAS
During my search to find interactive proofs, I decided to create my own in GeoGebra. I wanted something low pressure and user-friendly to ease students into proving triangles are congruent. So I scrambled the statements and reasons so students can arrange the parts to complete the proof. The proofs could also be used as a whole class activity with a SmartBoard allowing volunteers to arrange the parts. Here are the links to the first proof and the second proof. I wasn’t able to quickly add the segment notation so I left it off, reminding the students that it should be there and the statements and reasons are typically numbered.Everyone, Geometry Resources comment below, or link to this permanent URL from your own site.