The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to

• Classify triangles as right, acute, or obtuse. (a)

• Classify triangles as equilateral, scalene, or isosceles. (a)

• Compare and contrast the properties of triangles. (a)

• Identify congruent sides and right angles using geometric markings to denote properties of triangles. (a)

• Use models to prove that the sum of the interior angles of a triangle is 180 degrees, and use that relationship to determine an unknown angle measure in a triangle. (b)

To practice this skill, we wanted to provide scholars with several websites that include different games that focus on this particular skill. Most websites should not require sign-ups. If a sign-up is requires, you can choose to sign your scholar up or move on to the next available site. To access the practice games please click the buttons located below - this will take you to the designated site.