Patterns in modular arithmetic are discussed: (1) multiplication tables, and (2) diagrams obtained by joining points on the circumference of a circle. (MM)

Suggested activities involving number patterns, using the idea of a number machine." (MM)

The experiences described here use the idea of movement along the number line to reinforce the student's concept of addition and subtraction of both whole numbers and fractions. Four student worksheets and teacher guides are included. (MM)

Diffy" is a game designed to generate interesting drill in subtraction. it is based on the result that repeated subtraction with a cyclic sequence of whole numbers eventually produces a sequence of zeros. (MM)

The author describes a home-made manipulative aid which provides practice in addition. (MM)

The author describes an experiment to compare performance of grade 1-3 children on the various types of open sentence associated with basic number facts, and suggests some explanations for the results obtained. (MM)

Examined was the effect of teacher attitude on student achievement in arithmetic in grade four. The students were presented a lesson involving division via a modified programed learning sequence and teachers were given bias statements regarding the effectiveness of the programs. The results indicated no significant differences among students…