This book has been designed to help teachers of mathematics and their pupils in all types of Secondary Schools. It will also prove useful in the senior forms in Primary Schools. All the projects in it have actually been carried out in the classroom and judged to be of value. Full and detailed information is given so that work taken from it can be embarked upon without fear of unforeseen difficulties arising. A feature of Mathematical Enterprises for Schools is that much of the work described is self-checking, as the projects will not succeed without care and accuracy being applied throughout. This is of special value, as the onus is thrown upon each pupil to maintain a high standard of work. The book has been written so that keen pupils will be able to work directly from it with minimum guidance from the teacher. Detailed references are made to other books so that any topics found to be of particular interest to a class or to an individual pupil can be pursued further. Overall good co