Get your hands around spatial math.
Boxes you can unfold. Volume you can build layer by layer. Slices that change shape. Start with a question, try it yourself, then explain what you see.
Start exploringTry it for yourself
Cube netsPreparing the 3D model…
Drag to rotate. Move the slider to unfold.
Open the full lessonCourse library
From flat shapes to solids, and back again. Follow the sequence or start with the question that interests you.
Cube nets
Which two faces never meet when you fold a cube?
Unfold, refold and try a different net. Follow six colored faces to discover adjacent and opposite pairs.
Unfold a cubeCuboids & surface area
How much paper does it take to wrap a box?
Change the length, width and height. Lay out all six faces to see where the surface area formula comes from.
Unwrap a boxVolume & unit cubes
How many little cubes, without counting each one?
Build one layer, then stack more. Connect counting unit cubes to the formula for volume.
Build volume layer by layerCross sections of a cube
Can slicing a cube make a hexagon?
Move a cutting plane and compare the solid with its flat cross section. Watch how the shape changes.
Explore a sliceNo matching courses. Try “volume” or “net”.
Predict. Test. Explain.
Every course pairs hands-on exploration with readable explanations. Explore on your own, work with a parent, project it in class, or take the questions to paper.