A square geoboard is a mathematical tool consisting of a square board with a grid of pegs. Students use rubber bands to create various geometric shapes by stretching them around the pegs.

Geoboards are highly effective in teaching several mathematical concepts:

1. Geometry: Students can explore properties of shapes, such as triangles, rectangles, and squares, and learn about concepts like area, perimeter, angles, and symmetry.
2. Measurement: By forming shapes, students can visually and physically measure lengths and calculate areas