Comparison Rule
Product Code: 080459
A 1m triangular ruler, with an inches scale on one side, centimetres on another and millimetres on the third. Blocks of colour on each side indicate feet, 10cm and 100mm, reinforcing the concept of fractions, decimals, percentages and the comparison between metric and imperial measurements. The ruler, which can be used outdoors, is also an excellent line drawing product for the teacher.