ABOUT THE ANNOTATIONS IN "EARTH SCIENCE—CORE MATERIALS"

Entry Numbers

Curriculum materials are arranged alphabetically by title in each category (Core Materials, Supplementary Materials, and Science Activity Books) in chapters 1 through 4 of this guide. In addition, each annotation has a two-part entry number. For each entry number, the chapter number is given before the period; the number after the period locates the entry within that chapter.

For example, the first entry number in chapter 1 is 1.1; the second entry in chapter 2 is 2.2, and so on.

The entry numbers within each curriculum chapter run consecutively through Core Materials, Supplementary Materials, and Science Activity Books.

Order of Bibliographic Information

Following is the arrangement of the facts of publication in the annotations in this section:

  • Title of publication.

  • Series title, or series acronym if commonly used.

  • Authors (either individual names or organizational author).

  • Name and location of developer (in parentheses), if different from publisher.

  • Place of publication, publisher, and date of publication.

Series Acronyms

Following are acronyms of series titles in "Earth Science—Core Materials." (Series titles that are spelled out are not included in this list.)

FOSS

Full Option Science System

STC

Science and Technology for Children

Price and Acquision Information

Ordering information is presented in a block immediately below the annotation. Included are the follow:

  • Prices of teacher's guides, activity books, and kits or units.

  • The name of a principal publisher/supplier (not necessarily the sole source) for the items listed in the price category. (The address and phone and fax numbers for each publisher and supplier appear in appendix A, "Publishers and Suppliers.")

  • An indication of the various sources from which one might obtain the required materials.

sions) to complete. The teacher's guide includes a module overview, the 4 individual activity folios, duplication masters (in English and Spanish) for student sheets, and an annotated bibliography.

This module includes science background information, detailed instructions on planning for and conducting each activity, an extensive assessment component, and extensions for integration and enrichment. Materials are available in a kit.

Prices: Teacher's Guide (ISBN 07826-0016-6), $101. Complete module: $319. Publisher/supplier: Encyclopaedia Britannica Educational Corp. Materials: Available locally, from commercial suppliers, or in module.

2.3 Ecosystems. STC. Field-test ed. Washington, D.C.: National Science Resources Center, 1992.

Grade: 5 In Ecosystems, students learn about the interdependence of organisms and the natural environment by using 2-liter soda bottles to set up, observe, and experiment with two miniature ecosystems—an aquarium and a terrarium. After studying the two separate ecosystems, students connect them and observe the ecocolumn, noting any changes that may indicate an imbalance in the system. They read about aquatic and terrestrial organisms—plants, algae, fungi, bacteria, and animals—and pollution. They study habitat changes and conduct experiments simulating the effects of acid rain, road salt, and fertilizer. As a final activity, students in small groups investigate a real ecosystem in danger—the Chesapeake Bay. They read about the problems of the bay, analyze the situation from several points of view, propose possible solutions, and begin to grapple with the trade-offs involved in various solutions.

Ecosystems is a 16-lesson unit that requires 8 weeks to complete. The teacher's guide includes a unit overview, the 16 lesson plans, an



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