Nuffield Advanced Biology: Practical Activities and Investigations

The work in the Laboratory Guides was of three types.
*Preliminary work aimed to cover possible deficiencies in the students' background and provides reinforcement material for the less able student.
*Main work was within the capacity of the majority of A-level students. The amount of practical work was carefully limited to fit into a reasonable allowance of time.
*Extension work contained broader and more rigorous treatments of some of the main work. It was intended for the more able and advanced student and to provide a range of exercises to choose from.