SMP 11-16 is a mathematics resource for secondary schools which emphasises the relationship between mathematics and the world around us. The course material falls into two parts. Part 1, covering the first two years, consists mainly, but not exclusively, of booklets arranged into strands, which enable pupils to work at their own pace. Part 2, covering Years 9, 10 and 11, consists principally of five series of books, designed to suit pupils of different attainment: Y (yellow), R (red), B (blue), G (green) and A (amber).