Introducing Algebra | Year 7 Maths PowerPoint Lesson

This resource introduces algebraic notation, the vocabulary of variable, term, coefficient and constant, writing expressions from worded descriptions, collecting like terms and substitution. It gives particular attention to the difference between a + a and a x a, which is where most Year 7 errors begin. It is a ready-to-teach PowerPoint scaffold for an hour-long lesson on introductory algebra. Includes an expression match-up card activity with deliberate decoys, and a substitution challenge with a stretch task.