A few years back my students collaboratively made rotationally symmetrical lego designs. They filled our newly installed lego wall.
Last year my third graders made falling animations over a rotating optical illusion.
This year I hope to combine both ideas in a new way by having students make design again in legos then dynamically demonstrating rotation through animation.
Using the DoInk Animation app to digitally rotate the lego designs not only extends the lesson digitally, it serves as an assessment to determine if the designs are rotationally symmetrical.