Worksheets are provided for use by students in grades 8 and above when sectioning a tetrahedron. Lesson objectives include the discovery of generalizations regarding the cross-sections of a tetrahedron. (MK)

These worksheets, involving polygonal shape made with four hexagons, are given. Students are to develop problem-solving skills involving congruence and symmetry. (MP)

These exercises explore both square and nonsquare rhombi constructed on dot-paper grids. The materials are designed to provide reinforcement of geometric concepts, construction of figures from their symmetric properties, and discovery of figures related to each other by transformations. Student access to geoboards is encouraged as helpful. (MP)

Masters of worksheets designed to generate interest in mathematics and provide mathematical experiences that lead to the introduction of the concept of a variable are presented. (MK)

The material is designed for student estimation of factors and divisors, with calculator use for checking estimations. Four worksheet masters are designed for classroom use. It is believed that problem-solving skills can be encouraged as students look for ways to improve on estimations. (MP)

Activities designed for pupils to read and draw distance-time graphs and use the slopes to draw conclusions about car speeds are presented. Worksheets designed for duplication for classroom use are included, and suggestions for supplementary activities involving speed-time graphs are provided. (MP)

The relationship between simple interest and compound interest is explored by using calculators to develop the required formula inductively and intuitively. (MP)

Worksheets designed to aid in the instruction of graphing on the Cartesian coordinate system are presented. Finding areas and perimeters of polygons the pupils graph are the intended lesson topics. (MP)

A card game designed to help high school students drill basic arithmetic operations in general mathematics classes is presented. Activity sheets suitable for reproduction are included. (MP)

Mathematical activities suitable for reproduction as worksheets are suggested. These activities are adaptations of the classic tower puzzle and are intended to help students discover patterns, make generalizations, and use the strategy of solving simpler problems in order to solve a more difficult one. (MK)

Teacher's guide and master work sheet are provided to be used to explore geometric properties within a problem-solving activitiy. (MK)

An activity unit designed to help students discover some of the patterns of sine and cosine functions is presented. Worksheets designed for duplication are included. (MP)

Three worksheets provide activities which use numerical coding of events in American history, operations on the digits 1, 9, 7, and 6, anddetermination of number patterns. (SD)

This compilation of reprinted activities is organized into five sections around the following topics: computational skills, calculators, geometry, measurement, and problem solving. The "Activities" section has been a regular feature of the Mathematics Teacher since 1972, and space limitations prohibited the inclusion of all previously published…