The study assessed the effectiveness of methematical laboratories as compared with the regular mathematics teaching program. A control group, mathematical laboratory group, and a third group called a Class Discovery Group were formed for making comparisons. Gains were higher on cumulative achievement, transfer, and divergent thinking measures for…

Describes an indirect laboratory method of calculating pi by using circular aluminum foil pieces as reactants with sodium hydorxide solution in a eudiometer, and indicates the presence of errors ranging from +0.05 percent of 3.1416 to +0.5 percent of 3.142. (CC)

Short notes describe the use of articles concerning the creationist/evolutionist controversy in teacher education, a simple demonstration of digestion and absorption, and the use of a planetarium in biology motivation. A short report discusses the social need for living with conflict." (AL)

Describes a laboratory method of determining the formula for metal oxide, provides brief descriptions of two new courses at Kansas State Teachers College, and reports on meetings identifying critical needs in science education. (AL)

Using mosquito larva in the laboratory for studying the effectiveness of insecticides. (CP)

A mathematics center is described, including a list of basic equipment for the laboratory. The main focus of the article is on teaching method. Three discovery-oriented procedures are noted, and successful activities and materials are discussed. (DT)

Describes a quantitative chemistry experiment, conductometric titration, which was adapted for a blind student. Indicates other areas which can be adapted for similar experiments. (TS)

Activities using egg cartons to teach addition, subtraction, different bases, and probability are described. (DT)

Short articles on the determination of the activation energy of the thiosulphate-acid reaction, an experiment on hydrolysis of similar metal salt solutions, the preparation and electrolytic properties of iodine monochloride and iodine trochloride, and instructions for apparatus enabling laboratory study of the thermal cracking of ethylbenzene. (AL)