Geoboard Double Sided for School Maths Lab

Quick Answer: Geoboard Double Sided for School Maths Lab is a pin board with a different arrangement of pins on each face, on which students stretch rubber bands to make shapes. A double sided geoboard commonly pairs a square grid with a circular layout, so one board serves both area work and circle geometry.

Two Boards in One

A single-faced board limits the shapes pupils can make. With two faces, a class can move from grid-based area problems to circle geometry simply by turning the board over. The layout commonly found on double-sided boards is a square grid of pins on one side and pins set around a circle on the other, though the exact arrangement for this listing should be confirmed.

On the square-grid face, older pupils can go well beyond counting squares. A square built on a slant, for instance with corners joined by steps of 3 across and 1 up, has an area that cannot be counted directly. Surrounding it with an upright square and subtracting the four right-angled triangles in the corners gives the answer, 10 square units. Building tilted squares on the sides of a right-angled triangle with sides 3, 4 and 5 shows that the two smaller squares, 9 and 16, add up to the largest, 25, which is Pythagoras’ theorem.

The grid face also supports Pick’s theorem, which gives the area of any shape with corners on pins: area equals the number of pins inside, plus half the pins on the boundary, minus one. On the circular face, bands between pins form chords, inscribed triangles and regular polygons.

Applications

• Finding areas of slanted shapes by surrounding and subtracting
• Demonstrating Pythagoras’ theorem with tilted squares on a 3-4-5 triangle
• Testing Pick’s theorem on shapes with corners on the pins
• Making chords and inscribed polygons on the circular face

Specifications

Care & Handling

• Take all rubber bands off the double sided geoboard after use; bands left stretched perish and snap.
• Store the board on its edge or with a sheet between boards so the pins on both faces are not bent.
• Show pupils how to stretch bands away from faces and release them slowly.

Why Choose LabEquip

Maths teachers who want one board for area, Pythagoras and circle work, and schools short of storage space, are the usual buyers. LabEquip also lists the single-faced Geoboard in Mathematics School Lab Products; send your class size through the contact page.

Frequently Asked Questions

What is on each side of a double sided geoboard?

Double-sided boards commonly have a square grid of pins on one face and pins arranged around a circle on the other. Confirm the layouts for this listing when you enquire, so you can plan which lessons it covers.

What is Pick’s theorem?

For a shape with its corners on pins of a square grid, the area equals the number of pins inside the shape, plus half the number of pins on its boundary, minus one. Pupils test it on shapes whose areas they have already found.

How can the board demonstrate Pythagoras’ theorem?

Make a right-angled triangle with sides of 3 and 4 units, then build a square on each side, including a tilted square on the longest side. The squares have areas 9, 16 and 25, and 9 plus 16 equals 25.

How is the area of a tilted square found on the board?

Put an upright square around the tilted one so that its corners touch the sides. Work out the area of the upright square and subtract the four right-angled triangles in its corners. What remains is the area of the tilted square.

Why choose a double-sided board instead of two separate boards?

One board covers two sets of lessons, takes half the storage space and means a class can switch topics by turning the board over rather than handing out new equipment.

What rubber bands suit the board?

Medium-sized, reasonably thick bands are easiest to handle and last longer. Several colours help pupils tell apart overlapping shapes, such as the three squares in the Pythagoras activity.

Last Updated: September 2026