Engineering is Elementary

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Leif Catches the Wind
Leif Catches the Wind

Paperback: $8.00
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Catching the Wind:<br>Designing Windmills
Catching the Wind:
Designing Windmills


Teacher Guide: $50.00
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Catching the Wind: Designing Windmills
Catching the Wind: Designing Windmills

Materials Kit: $350.00
Refill Kit: $200.00
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