A method of building mazes with exactly one solution is described. (SD)

Worksheets utilize a paper geoboard to provide a variety of experiences with basic geometric concepts. (JP)

Activities are described that involve polyhedrons constructed with a marble inside enabling them to roll across a smooth surface. Directions are given for constructing such a tetrahedron. (DT)

A series of activities involving comparing weights of objects directly, using non-standard units, using standard units, using simple scales, and using complex scales are described. (SD)

A mathematics laboratory with commercial and teacher-made materials, a workshop, and a discussion room were established. An extension course taught how to use the instructional aids and accompanying behavioral objectives and activity cards. Active use of the lab is increasing. The teachers' enthusiasm has spread to the students. (KM)

Directions are given for activities designed to help children realize that linear measurement is continuous, that it involves the repeated use of a unit in the same way each time, and that measurement is approximate. Non-standard units as well as standard units are included. (DT)

Activities involving graphing are described. Beginning with arranging objects in linear arrays, the authors outline a sequence of activities leading up to graphing of grouped data, and circular graphs. (SD)

Specific mathematics lab activities involving fractions and measurement at the seventh grade level are described. (DT)

Measuring activities using the metric system are suggested for the elementary level. (DT)

Four major types of games using two sets of materials (Logical Blocks and word cards) are described: free play with the materials; organization of materials; relations games; and classification by one, two, or three attributes simultaneously. (DT)

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)

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