Making tangram

Dimensions of Tangrams

A square is divided up into 16 equal squares. 

Diagonal lines are drawn to produce 7 shapes.

2 Big triangles

1 Medium triangle

2 small triangles

1 square

1 parallelogram

src: http://www.techitoutuk.com/projects/tangrams/dimensions.html

Another way to make a Tangram is to cut up material as shown below.