In algebra, letters are used to stand for values that can change (variables) or for values that are not known (unknowns). A term is a number or letter on its own, or numbers and letters multiplied ...

An animated guide to simplifying algebraic expressions. Rules for grouping like terms together, multiplying out brackets and factorising are covered. Use to introduce working with algebraic ...

Educational Studies in Mathematics presents new ideas and developments of major importance to those working in the field of mathematical education. It seeks to reflect both the variety of research ...