Describes a six-week Yeshiva University Skill Center summer program in science and language arts for disadvantaged upper grade elementary school children. Individualized science activities emphasize manipulation of materials. (JM)

The possibility of changing the prosaic style of college level science textbooks to increase readability was investigated. Conclusions suggest that the readability of college textbook prose is not significantly affected by the stylistic factors employed in most readability formulas. (CJ)

Aluminum foil can be used to make impressions of structures preserved in sedimentary rock. The impressions can be projected onto a screen, photographed, or a Plaster of Paris model can be made from them. Impressions of ripple marks, mudcracks, and raindrop impressions are provided in photographs illustrating the technique. (Author/JN)

Ways in which the concept of oxidation-reduction has been treated in the current popular textbooks of general college chemistry are discussed. (HM)

Presented is a justification for inorganic chemistry in general chemistry courses. (HM)

Suggests using plastic bags as aquaria and terraria. Describes techniques for converting plastic sheets into aquaria, how to set them up for classroom use, and other uses for plastic bag aquaria. (DS)

Demonstrates how depth of field, exposure correction, and Scheimpflug focusing are obtained for a view camera, using elementary optics. (CS)

Describes a concrete model for teaching the concepts of reflection and refraction without the use of formal mathematics. The model has been tested in five sections of a physics course for nonscience majors at Towson State University, Baltimore, Maryland. (HM)

Describes a plexiglass and aluminum model of a Wadati zone suitable for classroom exercises and demonstrations in earth science to let students test the hypothesis that earthquake hypocenters near oceanic trenches tend to occur along planes that dip away from the trenches, toward associated island arc or continental mountain chain. (Author/JN)

Provides guidelines prepared by the National Science Teachers Association for the use and care of invertebrate and vertebrate animals in the classroom. Suggestions are made for conducting experimental and observational studies. (CS)

Explores linking the teaching of science to everday situations, with the idea that science education is particularly suited for the development of critical thinking habits. Conclusions are made regarding the "prompting effect" of everyday topics in the ability of ninth-grade biology students to recognize logical fallacies. (CS)

Discusses rapid, approximate methods for the calculation of errors estimates and other statistical results without using the computer. (SK)