Describes a teaching method in which students learn about evolutionary biology through the use of mathematics. Uses the concept of biostatistics, the mathematical analysis of the variation in nature, to understand evolution. (SAH)

Explores changes that occur in surface area and volume as an object increases in size and examines the implications these changes have for living things. Students can discover and extend many surface area/volume relationships by arranging and rearranging blocks and then applying relationships they discover to living things. (Author/JN)

Explores the effects of the square-cube law that predicts the physical consequences of increasing or decreasing an object's size. Uses examples to discuss the economy of scales, common misconceptions, and applications of scaling laws. (JRH)

Described is a team assignment where groups of students work on stoichiometry problems that apply to the real world. Teams of students act as chemical companies that have orders to fill for a customer. Included are the details of the customer order, student participation, and the evaluation procedure. (KR)

Water rockets are used to present Newton's three laws of motion to high school physics students. Described is an outdoor activity which uses four students per group. Provides a launch data sheet to record height, angle of elevation, amount of water used, and launch number. (MVL)

Describes two software programs for the Apple II series and TRS-80 Models III and IV: (1) "Personal Energy Inventory" (grades 9-12, records and manages data, not considered user friendly); (2) "Energy Conservation" (grades 7-12, aids in converting and problem solving, uses drill and practice). (MVL)