Algebraic notation is the standard way chess players record their moves. By Isaac Aronow The standard method of recording moves in a chess game is known as algebraic notation. The name isn’t quite ...

A mathematical proof is a sequence of statements that follow on logically from each other that shows that something is always true. Using letters to stand for numbers means that we can make statements ...

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