An exploratory problem is presented which involves the identification of all the ways a unit fraction with prime denominator can be written as a sum of two unit fractions. (MN)

The author presents several activities from a project designed to give primary school children a broad picture of perspective and direction, and to give practice in reasoning, counting, and systematic work. (MN)

A manipulative pedagogical device to supplement the teaching of a unit on computers is described. Sample programs possible with such a device are illustrated. (MN)

A classroom exercise which encourages experimentation including formulation and testing of conjectures about number relationships involving factors and multiples is illustrated. (MN)