Books by Katharine Barrett
Losing biodiversity
Losing biodiversity
Investigating artifacts
Investigating artifacts : maki
Investigating artifacts : making masks, creating myths, exploring middens
Mapping fish habitats
River cutters
Schoolyard ecology
Science and Math Explorations for Young Children
Mapping Animal Movements
Mapping Fish Habitats/Teacher's Guide
Animals in Action (Great Explorations in Math and Science Series)
Animals in Action Teachers Gui
Animals in Action Teachers Guide