Learning Resources Deluxe Rainbow Fraction Squares . These hands-on, colour-coded numeracy resources are designed to help students visualise and understand fraction concepts. The colour-coded pieces help reinforce connections between equivalent amounts as children simply piece together the circles. This set is ideal for adding, subtracting and comparing fractions. Includes 51 pieces to create one whole, halves, thirds, fourths, fifths, sixths, eighths, tenths and twelfths. Includes teaching guide. Suitable for ages 6+