Use tangrams to explore a variety of Geometry topics, from simple to challenging! I use this activity on the first day of my high school Geometry classes to give students something fun but valuable to "play" with. We refer back to this activity throughout the year when we discuss transformations, congruence, similarity, area, etc.
This file is a .pdf with printable tangrams and teacher notes, as well as an answer key. The teacher notes include instructions for the Tangrams Square Challenge, along with several connections and extensions for students at many levels, from fractions to proofs.