Implication of findings for designing an introductory mathematics curriculum are discussed. (Authors)

Reviewed are the Avon materials and a set of kits for teaching the metric system. (MM)

A planning guide for a month's early education activities centered around Eskimos, their culture, and their environment. (AN)

Results are discussed in terms of why children of the same age fail to conserve number in the standard conservation task and how complex number concepts might develop. (Author)

A discussion of some number patterns which arose from a consideration of the number of diagonals of a general polygon. (MM)

Describes a method utilizing the library system to introduce children to mechanical and mental arithmetic. (RP)

Lessons for first-grade students deal with the numbers five and six. How groups of five and six differ is the focus of the comparing and counting activities. (MNS)

Several brief articles are included in this section. "Purple Puzzlers" are challenging problems for algebra students. "Linear Invaders" is a game to reinforce concepts of graphing lines. "The Diagonal Method" is used to prove that the real and natural numbers cannot be put into one-to-one correspondence. (MNS)

Ten examples of when the sequences of key presses given in calculator instruction booklets are either inefficient or lead to an incorrect answer are given. (MNS)

Variations on a card trick are noted, with a formula for generalizing them. Another trick which can be proved with algebraic principles is then presented. (MNS)