Tessa a shape lab · prototype

Draw a shape — one finger, one go. Tessa will tell you what it is.

corners are counted · straight-ish sides are forgiven · each corner is a note

drag to turn it

Drag upward to raise the square into the third dimension. Let go when it feels like a cube.

the height is your hand's — listen: taller is higher

Pick six squares that fold into a cube. There are exactly 11 ways — how many can you find?

tap squares on and off · six connected squares can try to fold

a flat person sees

low high

drag the shape to turn it · slide to move the flat world through it