The Substitute Teacher
Tangrams
The Mathematical Cross
This tangram is from the 1700's and is not that
difficult to put together. You can make this puzzle by
using 110 lb. card stock paper. The students may wish to
color or paint a design on this tangram before they cut it
out. They would then try to assemble the unfinished back
face. The art work would assist them in reassembling the
tangram. I store my tangrams in regular envelopes.