square rectangle triangle draw ruler
cut small large symmetric similar put
together shape (noun) (geometrical shapes as needed)
Click on the
thumbnail image if you want to see a larger picture. Teachers who use a
should ignore the links to the larger images, as the
screen reader will read the instructions in order.
puzzles of geometrical shapes. They are easy to create, but may be
difficult to put together.
The activity below is a simple suggestion-- check out the links for
1. Using a ruler and
pencil, each student divides the triangle into at leat six geometrical
shapes of different sizes. Too many shapes will make the activity too
difficult! For best results, students should draw parallel
2. Students cut
triangles into the different shapes.
3. In pairs,
exchange their sets of cut-out shapes.
4. Students try to re-assemble their new
5. Alternatively, students create "creatures" with the
parts, or combine two cut-out triangles to create a full
"8.5 x 8.5" square.
6. Students describe the shapes of the square to the
Suggested links for additional ideas:
Tangrams: An Introduction
The Centre for Innovation in
Mathematics Teaching created this very informative site filled with
and links to other superb sources. Teachers will also find some very
information on the Centre's Home Page.
For material related specifically to
Tangrams, go to the Centre Home Page, click on Resources 2 and
click on Tangrams.
Randy, the author of this first-rate site, presents the
of Tangrams, explains how to make them, and provides several puzzles and
links to other valuable resources.
A page of tangram resources prepared by Tom Scavo. A math forum project, that emphasizes the geometry element of tangrams but can be used for general purposes as well.
These puzzles are provided by the Centre for
in Mathematics Teaching at the University of Exeter, and they are not
for math classes. This page also has a link to Puzzle Set 2.
A very fine site.
Build a Shape with Tangrams
Los Angeles County Office of Education authored these
"Student Interactive Learning" activities. Students and teachers alike
will find them both fun and stimulating.
4L Learning presents four different
levels of Tangram puzzles so that both newbies and experienced players
learn and have fun.
Celebrating Maths in
Geoff Dellow has made a movie in Tangrams using
He will provide worksheets to accompany this presentation in the
creative site that could be the basis for many creative activities in
foreign language classroom.