Home › Authors › Margaret Tinzmann 👤 Margaret Tinzmann 3 books Books by Margaret Tinzmann Are We Wasting Away ? (Breakth Are We Wasting Away ? (Breakthrough Strategies for Thinking Grades 6-7/150028) 1990 Forests, Feathers, Field Mice, Forests, Feathers, Field Mice, and You? (Breakthrough Strategies for Thinking/150102) 1990 Rain Forests - The Lungs of th Rain Forests - The Lungs of the Earth? 1990