THE CARIBBEAN
Formation of Reefs / Destruction of Reefs
Days 1 and 4
Goals:
1. Students will gain an understanding of how coral reefs and islands
are formed over a period of time, and see the world-wide distribution of
reefs and islands.
2. Students will be introduced to coral reef habitat destruction, and
what the causes of this destruction are.
Time:
One hour discussion on reef formation on Monday (part A), and one hour
discussion on reef destruction for Thursday (part B).
Resources\Materials:
Reef map, pictures of reef development, pictures of island development, pictures
of reef destruction, video on Hawaiian islands volcanos: "The Hawaiian volcanoes:
a force for creation" (1986).
BOOKS
Simkin, T. & Siebert L. (1994). Volcanoes of the World.
Simon, Seymour. (1995). Volcanoes.
Smith, Alan L. & Roobol, M. John. (1990). Mt. Pelee, Martinique:
A Study of an Active IslandArc Volcano.
Stearns, Harold T. (1995). Geology of the State of Hawaii http://volcano.und.nodak.edu/vw.html
(excellent web site on volcanoes.)
Procedure:
Part A
1. Introduce the students to the concept of formation of islands.
A. Discuss how the islands were formed through volcanic activity.
B. Show the students pictures and a short video on the Hawaiian island
volcanoes because they are active and can clearly show how islands are
formed.
2. Introduce the students to the concept of reef building.
A. Discuss Charles Darwin's theory of reef formation.
B. Discuss the three types of reefs (fringing reef, barrier reef, atoll).
For information on reef building, go to SeaWorld web page.
Part B
1. Introduce the students to habitat destruction and reef destruction
worldwide. A. Topics to be discussed: Human impacts, pollution, reef harvesting,
reef recovery time, biological diversity, biological uses (medicinal uses),
status of reefs worldwide, stresses on reefs (bleaching, sedimentation,
blast fishing), hobbyist impact on reefs. Go to the state of the reefs
page at (http://www.nos.noaa.gov/icri/state.html).
Assessment:
After the interactive discussion, students will be expected to be able
to identify two concepts learned both days the lesson is presented. The
students will submit short essays on what they have learned and hand these
essays in on the following days. The teacher will grade the essays based
on the following:
Rubric (Requirements for Essay):
4 Student demonstrated his/her knowledge on two concepts, discussed
them in a clear and concise manner, and used colorful art work to portray
the concepts.
3 Student demonstrated his/her knowledge on two concepts, and discussed
them in a clear and concise manner.
2 Student identified two concepts, but did not discuss them in a clear
and orderly fashion.
1 Student was able to identify, but not explain, two concepts discussed
in class.
Curricular Strands:
Language Arts - writing essays
Science - discussion of formation and destruction of reefs
Art - art work in essays
History - creation of islands
Current Events - discussion of current events
Possible Extensions:
A guest speaker on the formation of islands or volcanoes. Nature hike
to show students geological forces of nature. Build a volcano and make
it erupt. Start recycling in the classroom so students can take an active
role in helping the environment.
Carribean Unit - written by Trina Collins, Richard Wheeler, & Daniel
Shimek
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