NotesFAQContact Us
Collection
Advanced
Search Tips
Source
Education Level
Audience
Location
Sweden1
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing one result Save | Export
Hellden, Gustav F. – 1998
During the last decades, an increasing awareness has developed that humankind will have to make important decisions about the environment which will demand substantive knowledge of critical ecological phenomena such as the production and decomposition of biomass (World Commission on Environment and Development, 1987). As a biology teacher the…
Descriptors: Cognitive Structures, Concept Formation, Ecology, Elementary Education