Three colours of each plastic shape: circles, squares, and triangles in gradation from 1 to 10 cm. The materials are stored in 3 individual wooden boxes with lids.

This activity is used to further develop the child's experience of shapes and understand the relationship between patterns of plane figures.

Three boxes with three compartments and each containing as below
Three sets of triangles in red, blue, and yellow.
Three sets of squares in red, blue, and yellow.
Three sets of circles in red, blue, and yellow.