John Krieger
John Krieger
@johnkrieger - Author
John Krieger
@johnkrieger - Author
I taught science to elementary and middle school students for many years, and I am currently developing and marketing educational materials. My main ... more
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About me
I taught science to elementary and middle school students for many years, and I am currently developing and marketing educational materials. My main focus right now is on astronomy, but I hope to eventually market complete science curricula.
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