This pack is the same as the smaller version for the children, however is has been created for the use by the teacher at the front of the room, and so are 18cm across the diameter, meaning a big enough resource for the class to see. It comes as three different buying options, simple, extension and the full set. It is more expensive than the smaller packs, though will dramatically help when demonstrating fractions in concrete form. There is also an option of adding on the full sets of the smaller sets for the children to have whilst having the main one at the front of the room. These wooden fractions contain all the unit fractions from half to tenths and twelfths. They are all made so they can be interchanged between each other, thus helping with equivalence. In total there are 10 circles, which are cut up as 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 and 1/12. Each disc has been laser engraved and cut, giving the fractions an accurate finish. These sets should help with the understanding of equivalence and how many fractions make up each one and be able to see this. These sets could also be used for addition of fractions and working out the answers. With some practise it could also be used for subtraction of fractions.