In this article, we explored learners' conceptual understanding of coordinates and transformation geometry through concept mapping. A qualitative case study was employed in this study, and data was collected using an investigative task, observation and reflective interviews on a sample of 34 Grade 12 mathematics learners. The study was guided by…

This volume, a reprinting of a classic first published in 1952, presents detailed discussions of 26 curves or families of curves, and 17 analytic systems of curves. For each curve the author provides a historical note, a sketch or sketches, a description of the curve, a discussion of pertinent facts, and a bibliography. Depending upon the curve,…

Convex polyhedra having square or triangular faces are analyzed algebraically. (SD)

Presents theorems about lines and lattice points, and relates these to combinatorial analysis. (RS)

The relationship between area and perimeter is presented through a series of laboratory-type activities and demonstrations. (SD)

The material examines areas generated by combinations of: (1) Circles and Triangles; (2) Closely Packed Circles; and (3) Overlapping Circles. The presentation looks at examples of certain areas and at logical ways to generate the necessary algebra to clarify the problems and solve general cases. Ideas for extension are provided. (MP)

A description of mathematics as a game'' with a statement of rules and an investigation of the consequences is applied to a finite geometry problem concerning sets and subsets of club members and lunches. (DT)

The nature of geometry and the manner in which it should be taught are presented from various points of view. The Yearbook is in four parts. Part I has two articles on the role of informal geometry in school mathematics; one covers the elementary grade levels and the other, the secondary school. The authors of articles in Part II address…