Two definitions of numeracy are considered. A process for developing numeracy is outlined. (MK)

A geometric interpretation is given to the proof of the theorem that states that the symmetry group of a square is not a normal subgroup of the symmetry group of the regular tetrahedron. (MP)

Two problems related to the mean-value theorem lead into a problem requiring the use of the universal chord theorem. This latter theorem is discussed and a proof given. (MP)

Answered is the question, "If we label 12 spheres and roll them over the surface of an inner sphere at will, what permutations are achievable?" Illustrations are included. (MNS)

Point and circle configurations are not well known, so Clifford's chain of theorems and Miquel's theorem, whose diagrams exhibit such configurations, are discussed. A new theorem similar to Miquel's is then presented. (MNS)

Some concerns are expressed about many students who lack mathematics preparation for understanding college physics. Several possible solutions are identified. (RH)

The mathematics involved in a practical application of matrices and vectors to the field of computer graphics where three-dimensional objects are moved and displayed is explained. (DT)

This investigation extends a 25-point geometric system for defining a 25-point trigonometry whose properties are analogous to those of the trigonometry of the Euclidean plane. These properties include definitions of trigonometric functions arising from ratios of sides of right triangles, the relations of elements of a given triangle through the…

Compared was the effectiveness of two methods of presenting the rules of deduction in studying certain portions of mathematics. The study, involving two sections of a general studies course in mathematics, was conducted during the winter and spring quarters at Southern Illinois University. Section A spent th e entire winter quarter making a formal…

These instructional objectives have been selected from materials submitted to the Curriculum Laboratory of the Graduate School of Education at UCLA. Arranged by major course goals, these objectives are offered simply as samples that may be used where they correspond to the skills, abilities, and attitudes instructors want their students to…

Two mathematical brainteasers, with solutions depending on involved trial-and-error processes, are shown to have ingenious solutions. (MP)

Instructional approaches to vectors in n-space are discussed. (SD)