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Program Overview
The Great Explorations in Math and Science (GEMS) series includes more than 50 teacher's guides and handbooks for preschool through grade 10. About 35 of these are appropriate for middle school. The series also includes several assembly presenter's guides and exhibit guides. New guides and handbooks continue to be developed, and current titles are revised frequently. The series is designed to teach key science and mathematics concepts through activity-based learning. The time needed to complete GEMS units varies from about 2 to 10 class sessions.
Teacher's Guide
Recommended grade level:
5-7.
The 3 lessons in Earthworms provide students an opportunity to develop science process skills while learning about the responses of earthworms to temperature, wetness, and soil compaction. In the first lesson, students observe how the worms move and turn themselves over and how the organism's skin looks and feels. Then students practice locating and counting the pulse rates of earthworms. In the second and third lessons, they measure the pulse rate of earthworms at different temperatures and graph the results. In discussing why earthworms respond as they do, students learn about cold-blooded animals.
Each lesson in Earthworms includes a materials list, preparation steps, and directions for activities and discussion. The guide also includes background information, summary outlines for each lesson, reproducible data sheets, and suggestions for related reading.
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.
SCIENCE AS INQUIRY: Abilities necessary to do scientific inquiry; understandings about scientific inquiry.
LIFE SCIENCE: Structure and function in living systems; regulation and behavior.
HISTORY AND NATURE OF SCIENCE: Nature of science.
Price:
$9 (ISBN 0-912511-19-2).
Publisher/supplier:
LHS GEMS.
Materials:
Available locally, or from commercial suppliers.