An experimental technique to estimate the earth's circumference becomes a source of inquiry. (CP)

The number of observations made by 3-year-old students increased following a series of science activities emphasizing observational skills. (AL)

Describes a laboratory activity about measurement and its reliability for general education students. The measurement focuses on automobile speeds and allows for estimates of errors, experimental design, and relativity in addition to kinematical concepts. (DS)

Outlines laboratory activities designed to permit both majors and non-majors to perform crucial experiments in physics, using, when possible, replicas of original apparatus and copies of translations of original texts. (PR)

Describes the purpose and use of a card game which presents the essential groundwork of organic chemistry in a teaching aid form for use by the individual or by groups of sixth-form or first year university students. (Author/PR)

Describes the use of the game cards designed to help students master a large number of seemingly diverse yet fundamental reactions of classical organic chemistry. Claims that cards have stimulated students to learn organic reactions more willingly and more independently. (Author/PR)