A description of the organization and implementation of a mathematics lab for individual or small group use. Room arrangement, types of materials, and the role of teacher and aide are briefly discussed. (DT)

Instructions are given for making a flexagon; the possible transformations of the flexagon by flexing and turning are shown to form a non-abelian group of order 6. (DT)

The study assessed the effectiveness of methematical laboratories as compared with the regular mathematics teaching program. A control group, mathematical laboratory group, and a third group called a Class Discovery Group were formed for making comparisons. Gains were higher on cumulative achievement, transfer, and divergent thinking measures for…

Finding areas on square grid and on isometric grid geoboards is explained, then the Pythagorean Theorem is investigated when regular n-gons and when similar figures are erected on the sides of a right triangle. (DT)

Activities, instructional methods, and some ideas from educational psychology used in tutoring a second grader in addition and subtraction are described. (DT)

Activities to aid slow-learning and disadvantaged students in reading clocks are detailed; examples of worksheets are included. (DT)

Suggestions for easily obtainable materials to encourage children's use of language. (SP)

Activities using egg cartons to teach addition, subtraction, different bases, and probability are described. (DT)

The activity of making a set of Logic Blocks is used to lead to a discussion of families of polygons and to questions about tessellations. (DT)

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)

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

At all levels of instruction commonplace items such as fruit, gelatin, golf and tennis balls, and sugar cubes can be used to demonstrate geographic concepts such as earth-sun relations, locative grid, structure of the earth, glaciation. Tactile and visual demonstrations in which students participate are more effective than other alternatives. (NH)