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Ed Keller
Ed Keller is an award winning public school teacher who has taught primary through graduate school students. He is a noted lecturer, and author of several articles on science educa...voir plusEd Keller is an award winning public school teacher who has taught primary through graduate school students. He is a noted lecturer, and author of several articles on science education, a textbook reviewer, and an adviser to the National Science Foundation. Now retired, he spends time making jewelry and writing.voir moins
Livres par Ed Keller
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