Rachii CUBI

Turn iPad and iPhone into a hands-on 3D geometry lab. Rachii CUBI helps teachers and students develop spatial reasoning by predicting, experimenting and explaining what they discover. CUBES AND NETS • Explore up to 27,000 unit cubes. Remove, add or color cubes, separate layers and compare with the full shape. • Fold all 11 distinct cube nets gradually and investigate opposite faces. SOLIDS AND CROSS-SECTIONS • Explore 16 solid families, including prisms, pyramids, cylinders, cones, spheres, frustums and regular polyhedra. • Change dimensions, examine horizontal cross-sections and unfold nets for 8 basic solid families. • Follow calculations on a movable, collapsible card. Approximate results are identified. TOOLS FOR THE CLASSROOM • Rotate and zoom with fingers; use Apple Pencil on compatible iPads. • Write explanations with the pen, erase or undo strokes, and point with a temporary…