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6th Grade - Triangle Inequality Theorem

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Solve problems using the Triangle Inequality Theorem. SPI 0606.4.3

Links verified on 7/15/2014

  1. Discover the Triangle Inequality Theorem - a four-page lesson plan designed for 7th grade, a data sheet is included A lesson plan can be found at this site
  2. Inequalities in Triangles - [designed for high school students] Students use pasta to create models of triangles and non-triangles and investigate the relationship between the longest side of the triangle and the sum of the other two sides of the triangle in this Illuminations lesson plan from NCTM A lesson plan can be found at this site
    1. Inequality Activity Sheet - to accompany the above lesson This link includes something for the teacher to print An Adobe Acrobat document in .pdf format
  3. A resource for the teacher to use in planning their lessonsLicorice Triangles - a teaching idea using licorice shoe laces, and rulers A lesson plan can be found at this site [This expired page is brought to you by the Internet archive, the Wayback Machine.]
  4. Practice with Triangle Inequality - five multiple choice questions with explanation This site includes questions for your students to check their understanding [This expired page is brought to you by the Internet archive, the Wayback Machine.]
  5. Triangle Inequalities - explanation from the Regents Prep assessment prep site
  6. The Triangle Inequality Theorem - explanation that any side of a triangle is always shorter than the sum of the other two sides includes an interactive java applet 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
  7. Triangle Inequality Theorem - with worked solutions and a video A video is available through this link

 

 

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