Describes an experimental procedure for determining trihalomethanes (THMs) in liquids by gas chromatography. Provides recommendations for reactants and supplies to obtain acceptable results. Discusses the analysis of water from various sources: pools, lakes, and drinking water; compares these to three cola drinks. (ML)

Provides six fully developed library media activities designed to be used with specific curriculum units in art, reading/language arts, science, and social studies. Library media skills objectives, curriculum objectives, grade levels, resources needed, instructional roles, activity and procedures for completion, evaluation, and follow-up are…

Compares the effect of a chemistry computer simulation, written by the author, with the effect of an instructor demonstration. The study indicates that in this particular situation the operation of a spectrophotometer can be effectively taught by computer simulation method. The program is written using HyperTalk, the HyperCard programming…

Describes learning activities for elementary and secondary school classes that use hypermedia software to teach language arts, including book reviews and interactive fiction; science; social studies; communication among autistic preschoolers; problem solving with Legos blocks; and other interactive projects. (LRW)

Provides six fully developed library media activities that are designed to be used with specific curriculum units in art, reading/language arts, science, and social studies. Library media skills objectives, curriculum objectives, grade levels, instructional roles, activities and procedures for completion, evaluation, and follow-up are described…

Investigated the relationships of figural response items and open-ended verbal items in biology to figural and verbal mental aptitudes (n=24). Performance on the verbal items was positively related to verbal ability. Figural response scores were related positively to both figural and verbal abilities. (PR)

Investigates the relationship between school environment and science classroom environment in secondary schools. Reports that the characteristics of the school environment are not transmitted automatically into the science classroom. Concludes that the effect the school-level environment has on student learning is mediated by classroom process…

Contends that learning skills taught in science classes are of equal value for social studies. Discusses a two-step formula for establishing principles, hypotheses, and theories and then validating them. Presents and discusses eight skills used in science instruction that are applicable to social studies. (CFR)

Examines between-school variation in gender and ethnic inequality in course-taking of physics and biology. A multilevel analysis of 19,743 Israeli twelfth graders reveals the sciences are taken less often by underprivileged Jewish ethnic group students, physics is taken more often by males and biology by females, and gender typing is particularly…

A springtime forest probably contains over 100 shades of green. Describes outdoor observation activities that let the children monitor tree and plant growth. (PR)

With thousands of activities available, how does a teacher select activities appropriate for the classroom? Describes the guidelines of the "Science Activity Filter," which provide a useful protocol for evaluating science activities for their value in the classroom, allowing the teacher to use resources effectively, minimize discipline and safety…

Describes the Lead Teacher Program of Virginia's Quality Education in Science and Technology project which helps lead teachers become educational leaders, resource teachers, and school-based staff developers. Major foci include leadership, understanding and applying technology, and science and mathematics integration, content, and pedagogy. Some…

This activity uses ice crystals to introduce middle school and high school students to the collection, preparation, examination, and manipulation of scientific data. (PR)

Presents a lesson plan detailing an interdisciplinary mathematics/science activity in which students find the balance and center of gravity of a map of the United States. Contains reproducible student worksheets. (MKR)

Presents a lesson plan detailing an interdisciplinary mathematics/science activity in which students take a home survey of light bulbs and then design an energy-saving lighting system for a home. Contains reproducible student worksheets. (MKR)