Curated OER
Biodiversity
Fifth graders visit the playground to look for signs of life. They search for insects, birds, animal tracks, feathers, nests, trees, soil, etc. They then compose a class list that shows all findings in the schoolyard and post it in the...
Curated OER
Biodiversity: El Imposible National Park, El Salvador
Fifth graders explore the concept of how the more diverse an ecosystem is, the more interdependence of species exists within that system. The complex relationships among diverse species are difficult to identify. As species disappear or...
Curated OER
Tree Identification
Students are introduced to the characteristics of trees and different techniques to identify them. They distinguish between a deciduous and a coniferous tree. Students describe at least four characteristics used to identify trees. They...