Hopsa
Light travels in straight lines, so light from the top of a tree passes through a tiny hole and lands at the bottom of the screen, flipping the picture. Working out why it flips stretches spatial reasoning – and your own eye works exactly the same way.
The steps are in the app
Step-by-step instructions, tips and an easier and a harder version are waiting in the Hopsa app – along with 300 more ideas matched to your kids’ ages.
Coming soon to the App Store and Google Play
