Determined effect of testing frequency on data obtained using intensive time-series design. Eighth-grade, earth science student attitudes toward science class and class achievement data were not affected by frequency of data collection. Results of a previous study were also replicated, giving increased confidence in validity of data yielded by the…

Differentiating between time-series design and time-series analysis, examines design considerations and reanalyzes data previously reported by Mayer and Kozlow in this journal. The current analysis supports the analysis performed by Mayer and Kozlow but puts the results on a somewhat firmer statistical footing. (Author/JN)

Explains how an environmental education course using a small group format was successfully modified for a large class setting through the use of whole class lectures and small group sessions (N=20-25) led by graduate teaching assistants. Includes course format and evaluation results. (DC)

Describes the formation, chemical structure, and several uses of coal. The history of coal usage, production processes, coal tar products, and production of petroleum and other hydrocarbons from coal are also described. (DS)

Provides directions for constructing a wooden or metal weather vane. Also describes the construction of a "Boomerang Drum," a machine which can store and release energy, and suggests activities for use with it. (DS)

Summarizes "you do it" activities presented at the 1978 South Australian Science Teachers Association Conference. Topics include microscope use and maintenance, chemical slide cells, chemical models, sound waves, microwaves, astronomy, plant keys, reading geological maps, and natural dye processes. (DS)

Reports that teachers of the Crustal Evolution Education Project (CEEP) exhibit most of the characteristics typical of earth science teachers. However, their backgrounds in geology are superior to those of most earth science teachers. CEEP students tend to be academically above average. (Author/MA)

Presents a historical review of physical geography and its role in the school context. The physical geography lesson units (Soil and Water) of the Raumwissenschaftliches Curriculum-Forschungsprojeckt (RCF-Project) of West Germany are also described. (HM)

Describes several elementary science learning experiences and activities concerning the concept of space. Activities described include tracing children's shadows at different times of day, moon observations, and planetarium activities. (DS)

Detailed are the origins, development, and implementation of the Crustal Evolution Education Project (CEEP). This group has produced, for use in earth science and other classes in grades 8-10, a series of instructional modules based on current scientific research in the composition, history, and processes of the earth's crust. (BT)

Engages middle school students and preservice teachers in a long-term (16 weeks) investigation of the moon and provides an opportunity to share, via the internet, their observations with other students around the world. Explains the design of the study including multicultural connections, student observations, internet discussions, and…

Investigates the knowledge of elementary school teacher candidates on rock-cycle processes. Three different instructional interventions were used to improve their knowledge: (1) conceptual-change teaching; (2) traditional didactic teaching; and (3) microteaching. The conceptual-change group showed the most growth in understanding, supporting…

Presents a 10-week unit on rocks and minerals for 2nd and 3rd grade classes of students with disabilities. Focuses on children's science process skills. Includes a sample worksheet. (KHR)

Described is an undergraduate interdisciplinary project encompassing physics, computer science, and geology and involving a number of students from several academic departments. The project used the topic of the occurrence of in-home radon. Student projects, radon sampling, and results are discussed. (CW)

The construction and use of an instrument to monitor ultraviolet radiation from the sun are discussed. A diagram of the ultraviolet-B radiometer which is connected to a digital voltmeter is provided. (CW)