Describes how to construct a bulletin board with a light that flashes when the correct answer is matched with a question. (JR)

Describes a teaching technique (Teams-Game-Tournament) that stimulates students' desire to learn through friendly competition. Used in junior high school biology classes, this technique was found to increase academic achievement, increase peer tutoring, and increase black-white and male-female classroom interaction. (JR)

Discusses the use of a modified air table to conduct laboratory experiments which eschews research-oriented lab experience and concentrates on concepts learned in classroom. Includes a description of apparatus construction, sample instruction sheets, and a list of laboratory concepts with their relationships to classroom materials. (CC)

A laboratory experiment is described which presents some molecular parameters of iodine molecule by studying iodine spectrum. Points out this experiment can be conducted by sixth form students in high school laboratories. (PS)

Ten ideas are presented for classroom demonstrations in elementary schools. Topics covered include air pressure, siphons, electrostatics, melting point, and physiology of the human body. (PS)

Presents a teaching unit on the Langmuir absorption isotherm suitable for advanced secondary school chemistry classes. Describes the experimental investigation of the isothermal adsorption of sulfur dioxide on charcoal, and discusses the derivation of the Langmuir equation and some applications. (JR)

Describes the procedure for making a quantitative analysis of organic compounds suitable for secondary school chemistry classes. Using the Schoniger procedure, the organic compound, such as PVC, is decomposed in a conical flask with oxygen. The products are absorbed in a suitable liquid and analyzed by titration. (JR)

Includes eleven topics relating to laboratory activities, experimental procedures, and teaching materials suitable for secondary school chemistry classes. (JR)

Includes ten topics relating to laboratory activities, experimental procedures, and teaching materials suitable for secondary school physics classes. (JR)

Describes the content and organization of a laboratory session in which student teams work on the organs, tissues, and parasites of a pithed frog. The procedure maximizes participation by every student, makes possible the fullest use of each frog, and permits a rather broad study in a limited time. (JR)