A lot of people think that geometry and algebra are very different... but there are many overlaps! My mentor and I just spent ~3 weeks reviewing linear equations with our geometry students, and it has been a PAIN: it's kinda amazing how much students forget what they learned the previous year. Even as we reviewed slope and parallel/perpendicular line[ segment]s, I got more and more frustrated with my students who would get the rules mixed up after working with parallel/perpendicular line[ segment]s for a week--they needed to take the notes on the material.
So, we created a foldable for our classes, and I thought that I'd share. Enjoy! :)