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Next Book Previous Book Book List Investigations: Remote Rulers Do things really get smaller as they get farther away? Can you be sure? This unit provides students with active, hands-on experience exploring links between data from measurements, geometric patterns and algebraic formulas. Students build an understanding of the formulas XY=K (inverse variation) and X/Y=K (direct variation) through mathematical models created from real situations. Price: $19.95 Preview this book. Audience Age/Grade Level Subject Area Format Price Teachers Grades 6-9 Proportional reasoning and distance Spiralbound, 118 pages $19.95 Order Online       Order by Phone or Fax

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