I love teaching perimeter! It is one of my tip, top favorite things to teach because the possibilities are endless, and it's so easy to make hands-on and engaging for students. It's one of those concepts that I have to force myself to limit the amount of time I spend teaching, because I could drag out that unit waaaay too long!
I try to incorporate perimeter as much as possible to allow my students to make natural connections with the concepts and to prevent confusion between the two topics.
1 hour ago