Desargues's theorem proved by vector methods. (MM)

Presents a biography of the theologian and philosopher, Francis William Newman (1805-1897), the brother of John Henry Newman. His mathematical contributions were primarily in the area of analysis. (RS)

The proof that the area of a quadrilateral is one-ninth the area of another quadrilateral is presented. The proof is designed to give geometry students insight into techniques that can be used in other problems. (FL)

A study among high school geometry students found no sex differences in ability to write geometry proofs. The findings and data from other studies suggest that girls and boys perform equally well on complex mathematics tasks when exposure to the task is equal. (Author/MJL)

The notion that the area of an inscribed n-sided polygon approaches the area of a circle as n approaches infinity leads to some interesting limits involving trigonometric functions. (MP)

Curve-stitching the parabola is used as a means of confirming many of the parabola's mathematical properties and to construct some visually stimulating designs. (MP)