The author explains how "structured material such as the Colour-Factor Set can show all the properties, patterns and characters of numbers. Given the mastery over numbers with which these materials provide children, he condemns teachers who require children "to learn multiplication tables by rote and the so-called four rules by…

Student attitudes towards learning arithmetic and student preferences for working independently were not changed by organized lessons based on the manipulation of physical models using a wide range of student participation. (AN)

How to explain the compound interest formula. (MM)

Reported is a study of the interaction between figural and semantic abilities (as defined in Guilford's Structure of the Intellect") and success in a programmed unit in modular arithmetic. The subjects were prospective elementary teachers. Significant interactions were found between both figural and semantic factors and methods of instruction.…

Some suggestions for the use of commutative arrow diagrams in secondary school mathematics. (MM)

Operations with zero and concepts associated with the use of zero are examined in some detail. Historical practices concerning zero are discussed. (CT)

Characteristics of computer arithmetic that may cause programing problems are considered. How numbers are stored in a computer, round-off error, overflow, and double-precision arithmetic are among the topics considered. (FL)

A report of the effects of the Great Cultural Revolution in Communist China on mathematics education. The Cultural Revolution was launched officially in 1962 by the Central Committee of the Chinese Communist Party. Goals and results of efforts are presented. (RP)