Key Words: Dust Bowl, Ogallala Aquifer, depression,
agricultural resources, soil depletion.
National Standard: 14
State Standard: 14
Teaching Level: H
How human actions modify the physical environment.
Students will demonstrate an understanding of the connections
between Earth's physical and human systems; the consequences
of the interaction between human and physical systems;
and changes in the meaning, use, distribution, and
importance of resources.
Lesson Introduction: Assisting students to see connections
between past problems and potential future hazards
is critical in social studies. This lesson plan focuses
on the disaster of the Dust Bowl and the present use
of the Ogallala Aquifer. Though the problems caused
by agricultural practices in the 1920's is clear in
retrospect, current exploitation of the Ogallala is
less frequently discussed. The lesson asks students
to research the characteristics of the Great Plains
as an agricultural area, then to examine farming techniques
and their impact, yesterday and today. It may be included
as part of a geography unit on physical and human systems
or as a part of a history unit on the Great Depression.
Objectives/Purpose:
Materials:
Tricia Andryszewski, The Dust Bowl: Disaster on the
Great Plains.
Brookfield: The Millbrook Press, 1993;
Mathew Paul Bonnifield, Men, Dirt, and Depression. Albuquerque: University of New Mexico Press, 1979;
Donald Worcester, Dust Bowl: The Southern Plains in the 1930's. New York: Oxford University Press, 1979.
In addition, there are a number of National Geographic
Magazine issues devoted to water issues.
National Geographic's video, The Power of Water,Washington,D.C.:National
Geographic Society,1994, contains a segment on the
Ogallala today.
Segment 9 of the Geography in U.S. History educational film series, Bloomington, Indiana: Agency for Instructional Technology,1991, is devoted to the Dust Bowl and agricultural practices. Both videos are available for borrowing from the Learning Resources Center at Keene State College.
Procedures: l. Ask students where the Great Plains are and what they are like. Discuss, noting the designation of portions of the central United States as the "breadbasket" of the nation.
2. Ask students what the view of the Great Plains was historically. Discuss the reason that it was once called the "Great American Desert."
3. Ask students why perspectives have changed and what the facts are about that area of the United States. Discuss.
4. Explain to students that they have been hired as consultants to the United States Department of Agriculture to formulate agricultural policy for the present and future in the Great Plains. In order to provide the Department with a comprehensive report, they must include the following information:
-A geographic profile of the Great Plains, with information about climate, precipitation, soil types, vegetation, elevation, growing seasons, and so on.
-An analysis of past farming practices, particularly during the later 1920's and early 1930's. What caused the disastrous Dust Bowl? Was it physical processes, or human use - or both? What steps were taken to change agricultural practices? How effective were they?
-An evaluation of present use of the Ogallala Aquifer as a water resource which allows the "Great American Desert" to be irrigated.
-An assessment of potential problems with the depletion of the Ogallala.
-A series of recommendations for changes in agricultural practices which would prevent these problems.
5. Students may work individually or in groups, depending on teacher and class preference. If they are to work in groups, suggested roles would include: group leader, recorder/writer, research director, and graphics director.
6. Students may present their findings as a report with thematic maps or as a computer presentation.
7. Once students have completed their projects, they
should present their work to the class. Discuss.
Evaluation/Assessment:
Extension/Enrichment:
Additional Standards:
Reflection:
Thank you,
The authors.
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