ETC Montessori Elementary II Curriculum

Geometry with Tangrams and Pattern Blocks

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Advanced activities using tangrams and pattern blocks to develop the concepts of

  • Congruency,
  • Similarity, and
  • Equivalency

as well as follow up activities for areas of all polygons.

The tangram is an ancient Chinese puzzle consisting of seven flat geometric shapes. These shapes, called tans, include one square, one parallelogram and five right isosceles triangles which are all similar. Unlike a jigsaw puzzle where a piece must fit in only one way to complete a picture, the seven pieces of a geometric tangram can be arranged in many different ways to make figures. This in turn results in some extraordinary explorations that bridge the concrete with the abstract.


This items does not include a teacher's guide since the cards and activities associated with this work are designed for exploration and provide multiple answers.


4 Clear Snap Envelopes - Large


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