Included are worksheets on visualization of three dimensions for use in the classroom. The activities include: counting cubes in an arrangement (grades 1-3), constructing a cube with paper (4-6), and visualizing a large cube constructed with smaller cubes (6-8). (RS)

Describes a laboratory-centered introductory physics course for high school juniors and seniors. Course philosophy, objectives, laboratory procedures, syllabus, and evaluation methods are presented. A list of laboratory exercises, and a detailed description of three of them are included. (LC)

Describes an introductory physics experiment concerned with scattering particles off various force centers. The experiment uses simulation techniques and a computer. The scattering is classical, and the student examines plots of computed particle trajectories. The results illustrate the concepts of differential corss-section, total cross-section,…

Argues that the traditional chemistry laboratory manual is not inherently a cookbook and the modern course manual does not automatically eliminate the cookbook approach. Suggests that it is the nature of the teacher guidance that students receive before, after, and during the laboratory work that makes a chemistry program meaningful and effective.…

Describes an organic chemistry experiment suitable for high school students in second year or an advanced chemistry course. The techniques for the extraction and purification of caffeine from various household materials are described. Further experimentation with the extracted caffeine is suggested. (LC)