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

Notes on divisibility using manipulative materials, cyclic groups of functions, Horner's method of synthetic division, arc lengths of cycloids and cardioids, number squares, and students' concepts of mathematics. (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)

Presents report of 1983 conference on trade books for young children co-sponsored by Drexel University and Free Library of Philadelphia. Keynote address by Ava Weiss, Art Director of Green Willow Books, is followed by summaries of workshops led by well-known authors, illustrators, and/or editors. A selected bibliography of books is included. (EJS)

A procedure for generating the "nth" term of figurate numbers is given. (MNS)

Four three-year-old girls were studied in seven sessions during a three-month period for their performance on rote and object counting tasks. Two exhibited behavior consistent with underlying stable-order and uniqueness principles. (MNS)

A card trick that can be explained and justified using first-year algebra is presented. It illustrates the power of mathematics to unmask seemingly complex situations. (MNS)

Exercises with numbers designed to hold the interest of a heterogeneous group of adult students are described. They include games about age, counting, and cards. Meaningful content and active, interested participation are features of the techniques. (MSE)