Provided is a teacher's guide for a problem-solving activity that establishes a link between number patterns and geometry by focusing on the development of recurrence relations established when generating central polygonal numbers. Reproducible worksheets and a 3.0 BASIC program for the activity are given. (MDH)

Described are pentonimoe activities which nurture a nonanxious attitude toward math and science, promote an atmosphere of cooperation, support development of problem-solving skills, and provide spatial-ability skill exercises. These activities can be used by students at all educational levels. (KR)

A unit of study that introduces measuring as a way of collecting data is presented. Suitable for students in grades 3 and 4, it provides a foundation for further work in statistics and data analysis. The investigations may extend from one to four class sessions and are grouped into three parts: "Introduction to Measurement"; "Using Standard…