Develop: (8-12 years) Used to develop number operations of addition, subtraction, multiplication, division, place value, fractions, decimals, percentages, algebra, number theory, area and perimeter. Contents of this set include: 15 x EVA pegboards measuring 21cm x 21cm x 1cm, each board is printed with 1-100 numbered squares on one side and a multiplication square on the other, 1250 x pegs in five colours (250 each of red, blue, white, yellow & green), 200 x connect-a-cubes (20 each of 10 colours), 5 x games cards, teacher\'s guide with 128 x A4 pages with teaching tips and ideas as well as numerous classroom activities on number operations for the ages of 8-12 years. Supplied in a large storage tub.