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5The Sourcebook for teaching science strategies, activities, and instructional resources, Grades 6-12de réir Herr, Norman
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8de réir Kellett, Mary 1955-
Foilsithe / Cruthaithe 2005LEABHAR -
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10de réir Lantz, Hays B.
Foilsithe / Cruthaithe 2004LEABHAR