1.
Focus on life science : activity-centered program, teacher's guide
by Charles H Heimler
ISBN: 9780675067034
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Electrical and Nuclear Energy (Focus on science)
by Charles H. Heimler, Jack Price
ISBN: 9780675067317
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Life science: Activity-centered program : teacher's guide : guideline for 110 experiments an...
by Charles H Heimler
ISBN: 9780675075237
18.
Principles of Science, Book One (Teacher's Annotated Edition)
by Charles Neal Charles Heimler
ISBN: 9780675076739
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