Robert A. Williams
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Mudpies to Magnets: A Preschool Science Curriculum
Williams, Robert A; Rockwell, Robert E
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View 31 offersUS$ 3.85
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More Mudpies to Magnets: Science for Young Children
Williams, Robert A; Rockwell, Robert E
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View 27 offersUS$ 4.20
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The Preschool Scientist: Using Learning Centers to Discover and Explore Science
Williams, Robert A; Sherwood, Elizabeth; Winnett, David
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View 12 offersUS$ 6.77
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Science Adventures: Nature Activities for Young Children
Sherwood, Elizabeth; Williams, Robert A
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View 9 offersUS$ 4.14
