Manipulatives in the primary classroom
Take a ... geoboard
Board block
Take it in turns to make a triangle on the pegboard. Can you block your opponent?
Inside triangles
How many different triangles can you draw which each have one dot in the middle?
Happy halving
Can you split each of the shapes below in half so that the two parts are exactly the same?
Virtual geoboard
A virtual geoboard that allows you to create shapes by stretching rubber bands between pegs on the board. Allows a variable number of pegs and variable grid geometry and includes a point labeller.
Transformations on a pegboard
How would you move the bands on the pegboard to alter these shapes?
Nine-pin triangles
How many different triangles can you make on a circular pegboard that has nine pegs?
Pebbles
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
Board block challenge
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?