In this feature, we bring together activities which make use of the geoboard or pegboard, which is a wonderful resource for developing children's understanding of properties of shape, area and angles. There are two articles to read. The first offers guidance about the use of manipulatives generally and the second explains why we have selected these particular activities.
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.
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?