ETC Montessori

Deriving the Area of Geometric Figures

Current Stock:
4.85 LBS
CPSIA Exempt
Printed on (required)

This package includes all the pieces necessary, for hands-on discovery, of how to derive the area formulas for the following figures:

  1. Rectangle
  2. Parallelogram
  3. Triangles
  4. Rhombus
  5. Kite
  6. Irregular quadrilateral
  7. Polygon and
  8. Circles and Parts of a Circle

Help your students understand how to make associations and cultivate deductive thinking. Go beyond simply memorizing the formula. The skills they develop using this curriculum will prove beneficial further down the road when they are faced with geometric proofs, and derivations.

Constructed with precision, these cards will eliminate the need for you to spend time constructing area figures.


Look at our Upper Elementary Geometry Flow Chart to see how this work fits in with the traditional Montessori geometry curriculum.

View the Standards met through this material.


9 Clear Snap Envelopes - Large

2 Acrylic Sorters and

1 set of Plastic Sleeve Holders (will utilize 15)


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