Tuesday, July 27, 2010

Friday, June 11, 2010

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Sunday, March 21, 2010

Constructing Your Own Set of Tangrams

Posted by Abouz on March 21, 2010 with No comments

 

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Materials

    a rectangular piece of paper suitable for folding a pair of scissors a ruler (optional)

Activities

A complete set of tangrams consists of seven pieces:
    a small square two small congruent triangles two large congruent triangles a medium-size triangle a parallelogram
You can make your own set of tangrams from a single piece of paper.

Just follow these simple steps:

  1. Fold a rectangular piece of paper so that a square is formed. Cut off the extra flap.
  2. Cut the square into two triangles.
  3. Take one triangle and fold it in half. Cut the triangle along the fold into two smaller triangles.
  4. Take the other triangle and crease it in the middle. Fold the corner of the triangle opposite the crease and cut.
  5. Fold the trapezoid in half and fold again. Cut along both folds.
  6. Fold the remaining small trapezoid and cut it in two.

Friday, March 19, 2010

Units and tens

Posted by Abouz on March 19, 2010 with No comments
I use cups to represent the numbers in my class an its so useful for my pupils, in these photos some of them are trying to represent numbers using cups
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