The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or weight is measured in ...

linking ratios and fractions close fractionThe result of one integer divided by another. It is written with one integer above the other with a horizontal line between them. The denominator must not be ...

Many of us think we are "not good at maths", and we will cringe at the heading of this article. I know one clever science teacher who, when her students say this, she changes it to: "I'm not good at ...