Laminated and folded to A4 for easy filing and durability. Students and teachers alike will find these attractive, easy-to-use reference materials crucial to everyday learning and teaching. Laminated for durability, the Essential study guides come in a convenient A4 size specifically designed to fit neatly into a standard ring binder or just stand alone. Or, perhaps, have a set at home and a set at school. There are six essential study guides available for mathematics in lower secondary.