Schoolyard ecology : teacher's guide /

Bibliographic Details
Main Author:	Barrett, Katharine
Corporate Authors:	GEMS (Project), Lawrence Hall of Science
Other Authors:	Willard, Carolyn
Format:	Book
Language:	English
Published:	Berkeley, CA : Lawrence Hall of Science, University of California, [1998]
Series:	Great explorations in math and science.
Subjects:	Ecology > Study and teaching (Elementary) Activity programs in education. Nature study. Science > Study and teaching (Elementary)