Free Kindergarten geometry problems covering naming 2D and 3D shapes, counting sides and corners, and telling flat shapes from solid ones. Instant feedback, worked-out steps, and a fresh problem every time — no sign-up, and it works great on a phone.
In Kindergarten, geometry covers naming 2D and 3D shapes, counting sides and corners, and telling flat shapes from solid ones. Cubles Brain Blocks lets students practice all of it free, one problem at a time, with worked-out steps.
Yes — every problem is free with no sign-up and no ads, and a new one is generated each time so it never runs out.
Cubles kits are geometry in your hands: nets, faces, edges and vertices that fold and click into a poseable 3D character. No scissors, no glue, about 15 minutes.