3rd Grade Math Centers

(Marvins-Underground-K-12) #1

Three Rectangles


Materials: grid paper or recording sheet





  1. Leah and Sam found five different ways to decompose the figure below into
    exactly three rectangles. The three rectangles covered the entire figure but
    did not overlap.

  2. Work with a partner. Show five different ways that Leah and Sam might have
    decomposed the figure into three rectangles. For each solution you must:

    • draw the figure and shade the three rectangles different colors

    • write a multiplication equation to find the area of each rectangle

    • write an addition equation to find the total area of the figure



  3. Share your work with another partnership. Did you decompose the figure in the
    same ways?

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