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7th Grade - Apply Scale Factor

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Apply scale factor to solve problems involving area and volume. SPI 0706.4.3


Links verified on 6/11/2014


  1. Area of an Irregular Rectangle - calculate the area of each figure given This site is interactive and allows students to play a game or input or collect data
  2. Areas and Squares - a five question multiple-choice quiz This site includes questions for your students to check their understanding
  3. Artie Ounces Soda Jerk - interactive game to practice converting ounces to pints and quarts This site is interactive and allows students to play a game or input or collect data or This interactive site would work well on an interactive whiteboard
  4. Calculating Areas - a five question multiple-choice quiz This site includes questions for your students to check their understanding
  5. Calculate the Area of the Rectangle - from FunBrain This site is interactive and allows students to play a game or input or collect data
  6. Calculating the Area of a Triangle - from AAA Math
  7. Dilation - the description of a dilation includes the scale factor and the center of the dilation
  8. Dilation - definition with a good drawing to illustrate dilation from Wolfram MathWorld
  9. Dilation of a Polygon - adjust the slider to change the scale factor This site is interactive and allows students to play a game or input or collect data
  10. How to Perform Dilations - Math Warehouse provides three clickable animations explaining dilation
  11. Intuitive Notion of Dilation - definition and several good illustrations to explain the concept of dilation
  12. Linking Length, Perimeter, Area, and Volume - NCTM lesson plan comparing the perimeter and area ratios of similar rectangles with various scale factors
  13. Playing with Dilations - an interactive applet from the National Library of Virtual Manipulatives This site is interactive and allows students to play a game or input or collect data
  14. Re-roofing Your Uncle's House - [area] Use a built-in tape measure and calculator to calculate the roofing material needed to finish the job. [area of trapezoids involved] This site is interactive and allows students to play a game or input or collect data
  15. Scaling Away - Students will measure the dimensions of a common object, multiply each dimension by a scale factor, and examine a model using the multiplied dimensions. A lesson plan can be found at this site
  16. Solving Proportions - This lesson presents solving proportions by using cross product to find unknown terms
  17. Scale Drawings - [follow up for Solving Proportions] After you understand proportions, try the lesson on making scale drawings
  18. Spy Guys Interactive - Relating Area and Perimeter - Video Lesson A video is available through this link
  19. Spy Guys Interactive - Surface Area - Video Lesson A video is available through this link
  20. Spy Guys Interactive - Volume and Displacement - Video Lesson A video is available through this link
  21. Understanding Scale Factors - Similar Triangles: Perimeters and Areas - When two triangles are similar, the reduced ratio of any two corresponding sides is called the scale factor of the similar triangles
  22. Using Spreadsheets to Find Area and Perimeter - The cells of a spreadsheet are a useful way to represent area and perimeter. A lesson plan can be found at this site

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

  

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