Earth's Solid Crust
SUPPLEMENTARY MATERIALS
The Evolution of a Planetary System
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Program Overview
The Delta Science Module (DSM) series has 51 life, physical, and earth science units for grades K-8 that emphasize science concepts, science content, and process skills. The series includes 12 modules for grades 5-6 and 8 modules for grades 6-8. Each requires about 3 to 4 weeks to complete and includes a teacher's guide and materials for a class of 32 students.
Teacher's Guide
Recommended grade level:
5-8.
In Erosion, students investigate how wind, glaciers, and especially water cause erosion of the earth's surfaces and how the effects of erosion can be reduced. During the unit, students construct a stream table to test the effects of several variables on the process of erosion. The variables include vegetation, slope, water volume, and type of material being eroded. They compare the erosion and deposition characteristics of several types of earth materials, they simulate the erosive effect of wave action along a shoreline, and they test the effects of wind on sand before and after building a model windbreak.
The 12 activities in Erosion, which require approximately 15 class sessions, take between 30 and 60 minutes each and can be done by students working individually or in groups. A "connections" feature at the end of each activity provides suggestions for extending or applying the concepts in the activity. Discussion or activity topics include technology, society, science and careers, language arts, mathematics, the arts, social studies, and health. For example, a "science, technology, and society" extension suggests that students research and report on how glass is made and on its many commercial applications.
In addition to directions for activities, the teacher's guide provides a module overview, a schedule of activities, objectives for each activity, background information, materials management and preparation tips, sample answers to discussion questions, teaching suggestions, and reinforcement activities. Also included are reproducible activity sheets for student work and a performance-based assessment.
Key to Content Standards: 5-8 (see app. C)
UNIFYING CONCEPTS AND PROCESSES: Systems, order, and organization; evidence, models, and explanation; change, constancy, and measurement; form and function.
SCIENCE AS INQUIRY: Abilities necessary to do scientific inquiry; understandings about scientific inquiry.
EARTH AND SPACE SCIENCE: Structure of the earth system; earth's history.
SCIENCE IN PERSONAL AND SOCIAL PERSPECTIVES: Natural hazards; science and technology in society.
HISTORY AND NATURE OF SCIENCE: History of science.
Prices:
Teacher's guide (ISBN 0-87504-117-5), $27.95. Kit, $309.00. Refill package, $52.00.
Publisher/supplier:
Delta Education.
Materials:
Available locally, from commercial suppliers, or in kit.
