Tangram Square Challenge

In this challenge, a student or group is provided with all of the pieces of this puzzle except for the small square and they are asked to assemble the pieces into a square. After they are successful, it is announced that a new scientific discovery has been made and that the students must somehow incorporate this new information to their puzzle.

There are lots of pdfs to print and cut this design out on paper but sometimes it's nice to have a more durable and tactile model to use year after year :)

Some examples of this activity online:

https://www.scienceteacherprogram.org/genscience/Choi04.html

https://www.sciencelearn.org.nz/resources/431-the-extra-piece