The mechanics portion of the PSSC course is taught using man-sized" carts and equipment. The students ride and propel the equipment themselves thereby experiencing the forces and acceleration involved. The experiments are carried out in the school gymnasium. (TS)

Describes experiments in conditioning, sensory processes, social behavior, imprinting, innate preferences for color and form, and discrimination learning suitable for secondary school students. Mealworms, crickets, and chicks are used as subjects. (AL)

Describes procedures suitable for student preparation of benzaldehyde, benzoic acid, and ethyl benzoate sequentially from benzyl alcohol. Preparation for benzyl chloride also given. All reagents except benzyl alcohol are common inorganic chemicals. (AL)

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)

Presents the procedures, results, and conclusions of a study designed to determine the relative effectiveness of 4 types of laboratory reports in CHEM Study chemistry. Subjects were 75 eleventh and twelfth grade students randomly assigned to four treatment groups. Dependent variables were the scores on a battery of evaluation instruments which…