The author spent many years teaching at a selective school with the constant challenge of including the most able students, whilst at the same time avoiding the danger of excluding the rest of a class. These blackline masters are the result: many of them include fairly routine work, but each has more difficult questions to provide a challenge for the really able. The answer sections provide guidance on these difficult questions. Book G topics covered include: Areas, angles and constructions on graph paper; Draw and investigate; Exploring triangles; Starting vectors and Pythagoras; Parallelograms; Regular polygons; Enemy territory using coordinates; Reflections; Calculating Pi; Similar shapes; Loci; Scaling; Tangents and touching circles; Shapes and surds.