Fold a flat net to build a 3D solid.
Freely manipulate nets and fold them in 3D.
Find the right net among the 3 candidates.
Year 3 — Classic cube
3 nets: only one closes correctly
Year 3 — Alternate cube
Several valid nets exist!
Year 4 — Cuboid
Tell a cube apart from a cuboid
Year 4 — Square pyramid
1 square + 4 well-placed triangles
Year 5 — Triangular prism
Rectangles + triangles at the ends
Year 5 — Tetrahedron
4 equilateral triangles
