Same Perimeter, Different Area For Rectangles

🔓 This is an unlocked sample! Byrdseed.TV is open for new memberships through October 1st, 2021. Join today!

Students will explore the big idea: Shapes can have the same perimeter, but very different areas.


  1. Students create at least five different rectangles with 16m of perimeter.
  2. They organize their information and look for a pattern between the shape's dimensions and its area.
  3. Students create three ways to use three of their different rectangles. I give an Alien Zoo example.


The registration window closes on October 1st, 2021

Send me some samples!

Or are you already ready to sign up?

Teachers love Byrdseed.TV!

"This was the best money I have ever spent on a teaching tool!"  ~  Christine in Wisconsin

"I am the coordinator for our district gifted program. Byrdseed.TV is one of my favorite sites and one of the best investments I have made for the program."  ~  Jeannette in California

"I just subscribed to Byrdseed.TV and am loving it -- though it is kind of scary addictive in a binge-watching kind of way (that, by the way, is a compliment)."  ~  Elizabeth from Florida

Keep Watching

Measurement and Data →