Common Multiples

Prepare a Presentation

Work Time

Prepare a Presentation

Prepare a presentation that shows your work and supports your conclusion about how you know you made the smallest square possible.

Challenge Problem

  • Start with the 2 × 5 rectangle. Predict what size the smallest possible square would be that you could build using the rectangle.
  • Build the square to see if your prediction is correct.

INTERACTIVE: Build Squares with Rectangles


What do you notice about the length of the square compared to the length of either side of the rectangle?