Explore concepts of equivalency with these colour-coded magnetic pieces. Students can combine the pieces to create a whole, mix and match pieces to compare parts of a whole, equivalent values, compare fractions, decimals and percentages in bar and circle form. The 4mm thick foam pieces are lightweight yet durable, and the colourful surface of each piece is printed on a wipe clean material. Each set contains 106 pieces. Circles are 13.5 cm across.