Addition and subtraction, counting on and counting back to 20. Literally put the number in your head and move the slider to count on or count back. The answer is clearly viewed in the window. Hands for extra fingers for counting, tables, sharing and measuring.

Feet for non-standard measurement, bright colours for pattern work. Rulers which bend and go around corners and curved surfaces.

Standard measurement 0-30cm number lines on reverse: 3 sets of 10cm for estimation. Labels - longer than, shorter than, longest, shortest, the same as and ...cm. Negative numbers are introduced.

Set includes 12 heads, 12 sliders, 12 feet, 12 rulers, 12 hands and measurement words, 12 reference cards and a 32 page photocopiable booklet.