As a geometry teacher, this pet peeve. I'd be grading and see students mixing up their usage of congruent and equal in lines of a proof. Since I make kids write out separate lines for each step, including converting from a statement of congruence over to an equation with the measures, missing this was really messing up their scores, along with driving me crazy. Here's a post about how I taught this skill and solved the problem!
![Share ThisIf you think others need to see this, share it on one of the sites below by clicking on the button.[Looking for other grade levels? The button below allows you to download all of them or you can look here.] If you’ve been looking for a way to challenge your students that was… Standards For Mathematical Practice, Mathematical Practices, Math Practices, Middle School Math, Elementary Math, Dok Levels, Matrices Algebra, Depth Of Knowledge](https://i.pinimg.com/236x/c6/6c/28/c66c2852a3d3d8433684fc463890c1dc.jpg)
