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7th Grade - Indirect Measurement

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Solve problems involving indirect measurement such as finding the height of a building by comparing its shadow with the height and shadow of a known object. 0706.4.1

Links verified on 1/15/2010

  1. Building Height - lesson plan from Illuminations [includes a good illustration] A lesson plan can be found at this site
  2. Connecting Geometry: Similar Triangles - Similar triangles can be very useful for measuring inaccessible objects. One method of doing this is called "shadow reckoning," which this page describes
  3. Exploration: Indirect Measurement - this five-page leson provides suggestions for a technology lab, a review for mastery page and a homework page with eight problems An Adobe Acrobat document in .pdf format This link includes something for the teacher to print
  4. Extending Our Senses: Indirect Measurement - this newsletter article from Arbor Scientific includes ideas on how to measure the height of a flagpole or rocket and even a suggestion for measuring the size of the moon A lesson plan can be found at this site
  5. Find the Altitude of a Flying Kite - using a clinograph [instructions included on how to make a clinograph]
  6. An Adobe Acrobat document in .pdf formatHow to Measure Chimney Height - ignore the one about the barometer (that's just a joke), the suggestions in yellow are good.
  7. Indirect Measurement - iCoach Math has a good example of how to use this method
  8. A PowerPoint show related to this standardIndirect Measurement - [11 slides] This slide show could be used with projection for a whole class lesson giving students times to work the four sample problems and then showing the step by step solution for each one (included on the slide)
  9. Indirect Measurement - this 4-page document was designed for 4th grade but it fits this standard perfectly An Adobe Acrobat document in .pdf format This link includes something for the teacher to print
  10. Indirect Measuring and Shadow Reckoning - three examples with fully worked out solutions to be used as examples An Adobe Acrobat document in .pdf format This link includes something for the teacher to print
  11. Indirect Measurement Technique: Using Trigonometric Ratios - Grade Nine - although this activity is designed for ninth grade the lesson plan could be used in middle school to teach this standard An Adobe Acrobat document in .pdf format A lesson plan can be found at this site
  12. Indirect Measurement Techniques - [designed for grade 8] this eleven page lesson plan provides clear instructions on how to peform the measurement and gives several practice problems An Adobe Acrobat document in .pdf format A lesson plan can be found at this site
  13. Indirect Measurement with Similar Triangles - this five page lesson plan describes how to use a mirror in making indirect measurements. An Adobe Acrobat document in .pdf format A lesson plan can be found at this site
  14. Measurement Estimation - instructions from an outdoor skills handbook for scouts
  15. Measuring Heights of Tall Objects - This page has six problems for students to solve, solutions are available. At the end of the page there is a link to a video segment about this skill This site includes questions for your students to check their understanding A video is available through this link
  16. Measuring Heights of Tall Objects: Homework - eight homework problems with solutions available This site includes questions for your students to check their understanding
  17. Measuring the Height of a Building Using Shadows - explanation from Dr. Math at the Math Forum
  18. Similar Triangles and Indirect Measurement - this worksheet gives a short review, an example and five practice problems An Adobe Acrobat document in .pdf format This link includes something for the teacher to print
  19. An Adobe Acrobat document in .pdf formatUsing Similar Triangles and Rectangles - in this investigation, you can use similar triangles to estimate heights and distances that are difficult to measure directly A lesson plan can be found at this site

 

 

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