This is part of a series of five lessons that I teach on matrices. It is available as a bundle at a slightly reduced price. Lesson One: adding and subtracting matrices, also a look at what are matrices etc...Lesson Two: Multiplying, mainly 2x2, when you can and cannot multiplyLesson Three: zero and identity matrix and the determinantLesson Four: Inverse matrices intro - using the formulaLesson Five: Inverse matrices further - simultaneous equationsThis PowerPoint contains a whole lesson introducing the topic of matrices, specifically what matrices are, order of matrices and how to put data in matrix form. Then starting to look at some basics, such as how to add and subtract matrices. It also looks at how a scalar is used, and goes through examples of questions like 3a + b.The PPT contains a starter, various examples, lesson objectives, key words, questions, answers and plenary. I have found this resource to help me structure the lesson effectively, keep the flow and successful in helping pupils progress and get a good foundation for future lessons on matrices. NOTE: Feel free to browse my shop for more excellent free and premium resources, and as always please rate and feedback, thanks.