Triangle+Inequalities+Lesson

Students can use this lesson plan in order to help them understand the difference between triangles and non triangles by creating models. Students will use pasta to investigate the relationship between the longest side of the triangle and the sum of the other two sides. I find that students always have a difficult time remembering how to tell if the sides from a triangle. In addition, students will measure the sides and angles of a scalene triangle and investigate the relationship between the location of the largest angle and largest side in a triangle.

[[http://illuminations.nctm.org/LessonDetail.aspx?ID=L681