This task was used as a performance task during our congruent triangles unit. The overall objective was for students to be able prove congruent triangles and classify triangles. This task was given towards the end of our congruent triangles unit either before or after the unit assessment. Students seemed to understand what the task was asking them to do, and the majority of students were able to answer the questions appropriately. Students did struggle on part f where they had to explain the classification of the triangle described.

Microsoft Word version: 912Geometry_CO_TriangleCongruence_Assessment_Construct_PerformanceTask-CongruentTriangles

PDF version: 912Geometry_CO_TriangleCongruence_Assessment_Construct_PerformanceTask-CongruentTriangles


This warm up is created for geometry students learning triangle congruence postulates. Students are given two problems, one with two triangles that share a side and one with two separate triangles. The questions contain argumentation language and ask students to construct an argument determining if the triangles are congruent.

Microsoft Word version: 912Geometry_CO_TriangleCongruence_Warmup_Construct_CongruencePostulates

PDF version: 912Geometry_CO_TriangleCongruence_Warmup_Construct_CongruencePostulates