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7th Grade - Direct or Inverse Proportion


Recognize whether information given in a table, graph, or formula suggests a directly proportional, linear, inversely proportional, or other nonlinear relationship. SPI 0706.1.3

Links verified on 6/9/2014

  1. Cat and Mouse: Direct and inverse proportion - The problem is actually a great opportunity to teach direct variation and inverse variation.
  2. A PowerPoint show related to this standardDirect Proportion - a 37 slide PowerPoint show with effective animation, many examples and practice problems - UK units are used - you might want to remove slides 7, 17, 23, 30, and 37 which refer to a specific textbook
  3. Directly Proportional - the explanation includes a link to an Excel workbook which supports understanding of the topic
  4. Graph of Direct Proportionality - two sample video lessons [0:47 and 0:46 in length] show collected data and graphs A video is available through this link
  5. Index of Direct Proportion Resources - sample resources from a UK company
  6. Index of Inverse Proportion Resources - sample resources from a UK company
  7. A PowerPoint show related to this standardInverse Proportion - a 17 slide PowerPoint show with good examples, step by step solutions and good graphs [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
  8. Inverse Proportions - from the Learning Math series posted by Annenberg - includes practice problems and interactive applets This site is interactive and allows students to play a game or input or collect data

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.




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