The author spent many years teaching at a selective school with the constant challenge of including the most able pupils, whilst at the same time avoiding the danger of excluding the rest of a class.
These worksheets are the result - many of them include fairly routine work, but most have more difficult questions to provide a challenge for the really able. The answer sections provide guidance on these difficult questions.
Book S&X topics covered include:
Early probability and data handling
Probability taken further
Looking at data
Possibilities and probabilities
Half pint mugs
Areas and lattice points
Production and Marketing
Drilled and painted cubes