I see shapes of triangles, square and rhombus….
Challenge: to create rectangle with 3, 4…7 pieces of the tangram.
As the activity moved with addition of the pieces, the mind got excited as it picks the challenge. “How to do this? How more pieces can be used to create a rectangle?…more pieces, bigger rectangle..?”
I felt like a kid again, and imaging how my preschoolers would be feeling excited too!! A good extension for the Kindergarten level and change them to the different way or stategies that the may apply/adopt as they pursue to solve the challenge.