interactivity

### 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.

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### Manipulatives in the Primary Classroom

In this article for teachers, Jenni Back offers research-based guidance about the use of manipulatives in the classroom.

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### Take a ... Geoboard

This article for teachers explains why geoboards are such an invaluable resource and introduces several tasks which make use of them.

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### Board Block

Take it in turns to make a triangle on the pegboard. Can you block your opponent?

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### Inside Triangles

How many different triangles can you draw on the dotty grid which each have one dot in the middle?

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### Happy Halving

Can you split each of the shapes below in half so that the two parts are exactly the same?

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### Transformations on a Pegboard

How would you move the bands on the pegboard to alter these shapes?

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### Nine-Pin Triangles

How many different triangles can you make on a circular pegboard that has nine pegs?

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### 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?

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### 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?

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### Peg and Pin Boards

This article for teachers suggests activities based on pegboards, from pattern generation to finding all possible triangles, for example.

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### Interacting with the Geometry of the Circle

Jennifer Piggott and Charlie Gilderdale describe a free interactive
circular geoboard environment that can lead learners to pose
mathematical questions.