Manipulative Materials:
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chalk, two stakes, length of rope
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tempera paint, cone shaped cups
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posterboard
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marbles
Data Observation Forms:
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Hardware:
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computer
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internet connection
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modem 28.8+/ethernet 56k
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printer
Software:
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Browser program (if Netscape 3.0+)
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spreadsheet program (e.g., Excel or Claris)
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