Choose a mode
Tap pegs to place the corners of your shape — the band connects them and closes the loop. Tap the last corner again to undo it. Build any shape whose area matches the target, then press Check.
Tap pegs to place the corners of your shape — the band connects them and closes the loop. Tap the last corner again to undo it. Build any shape whose area matches the target, then press Check.
3D math game · Best for grades 3-5
Stretch a coloured rubber band over the pegs of a geoboard to enclose a shape with the target area.
Building shapes on a geoboard strengthens understanding of area, vertices, and sides.
The game builds understanding of Geometry. Tap pegs to place the corners of your shape — the band connects them and closes the loop. Tap the last corner again to undo it. Build any shape whose area matches the target, then press Check.
shapes, area, perimeter, angles, and three-dimensional structures.
Students connect spatial action with precise geometric language.
They learn to see, build, and explain the shape.
Use it for individual practice, paired work, or a short class demonstration before worksheets.
Start with the game above, then continue with written practice to reinforce the skill.