2.G.2. Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
View full screen in your browser. This ITP allows you to colour in cells on a grid, a full cell or half a cell, or to place a circular counter into a cell. There are three choices of grid size: 5 by 5, 10 by 10 or 20 by 20. The grid can be hidden or replaced by a pin board around the points of which rubber bands can be stretched.
This resource is freely available to download from the archived Primary Framework site.