This book is intended for supplementary reading in the elementary school. It is written in non-technical language, and the effort has been made to connect with the history enough of the human element to make it more interesting than any mere recital of facts. With it there is also joined something of the history of writing materials, this being…

Four masters of trigonometrical tables are provided, so that students will have a basic set. Tables for sines, tangents, and cosines and a table of formulae for right triangles are given. (MNS)

Mathematics activities involving the construction of spirolaterals are presented in this issue of "Student Math Notes." Spirolaterals are figures in which sequences of line segments of differing lengths, connected by angles of a constant size, are drawn repeatedly to create a geometric design. The activities presented involve the…

Provided are four worksheets that are designed to capitalize on the use of calculators as teachers' partners in helping students to develop an intuitive feeling for percentage. Students also learn how to use the calculator's percent key to compute percentages. (MNS)

Activities concern exploring data and using the stem-and-leaf plot for displaying data. The three worksheets present activities, with brief directions for the teacher included. (MNS)

This booklet provides worksheets for children in preschool through grade one. The focus is on developing number concepts, with activities on matching numbers with pictures and on completing sequences, addition and subtraction facts, measurement ideas, fraction ideas, and identifying shapes. (MNS)

Three worksheets and teachers' notes for grades 8-12 are provided on symmetry. (MNS)

Activities that provide opportunities for students to investigate solving linear equations using both a physical and a pictorial model are given. Students should discover a method that will permit them to solve such equations at the symbolic level. (MNS)

Three board games are presented, with playing directions and comments to the teacher (MNS)

Two map posters are provided. Younger children can use a neighborhood map to locate information and trace paths, while older children can use a wilderness map to read scales. The emphasis is on problem solving with both maps. (MNS)

Motivational classroom materials that provide direct instruction on problem-solving skills are given. The activity highlights and provides opportunities for practice with two problem-solving skills, make a drawing and work backward. (MNS)

The estimation strategies of "using compatible numbers,""averaging," and "rounding" are used. The first two worksheets review easy arithmetic facts and ask students to identify compatible numbers. Worksheet Three introduces averaging and provides practice with rounding, while the fourth worksheet contains problems for group practice. (MNS)

License plates are used to give students experiences in solving problems, following directions, developing numeracy, and writing number sentences. Four activities for different levels are given on the four worksheets. (MNS)

Metric measurement activities are given, offering many opportunities for measurement and comparison with measurements. Experiences in measuring with a tape measure are directed at Levels One to Three, while experiences in estimating, measuring, computing area and volume, and ratio are included for Levels Four to Eight. (MNS)

Exercises are used when beginning work with calculators to help pupils think about what they are doing. Four worksheets are included, with discussion of their objectives. (MNS)