#### MAT-HS.G-SRT.05.a

 MAT-HS Targeted Standards(G) Concept: Geometry(SRT) Domain: Similarity, Right Triangle, and TrigonometryCluster: Prove theorems involving similarity MAT-HS.G-SRT.05.a Use congruence to solve problems in geometric figures.

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## Proficiency Scale

 Score Description Sample Activity Advanced In addition to Score 3.0, the student demonstrates in-depth inferences and applications regarding more complex material that go beyond end of instruction expectations. Error analysis (explain why the reasoning of others is incorrect) Explain why the answer is incorrect and give the correct answer. 3.5 In addition to Score 3.0 performance, the student demonstrates in-depth inferences and applications regarding the more complex content with partial success. Proficient “The Standard.” The student demonstrates no major errors or omissions regarding any of the information and processes that were end of instruction expectations.    Use congruence to solve problems.    Use congruence to show relationships in geometric figures (using CPCTC) Two door stops have cross sections that are right triangles.  They both have a 200 angle and the length of the side between the 900 and the 200 angles are equal.  Are the cross sections congruent?  Explain.   Solve for x and y: 2.5 The student demonstrates no major errors or omissions regarding the simpler details and processes (Score 2.0 content) and partial knowledge of the more complex ideas and processes (Score 3.0 content). Progressing The student demonstrates no major errors or omissions regarding the simpler details and processes but exhibits major errors or omissions regarding the more complex ideas and processes (Score 3.0 content). recognizes the congruence criteria for triangles (SAS, ASA, etc.) recognize and use specific terminology such as: Corresponding angles, corresponding sides, congruence statement Identity all the pairs of corresponding sides and angles. Then write a congruence statement. 1.5 The student demonstrates partial knowledge of the simpler details and processes (Score 2.0 content) but exhibits major errors or omissions regarding the more complex ideas and procedures (Score 3.0 content). Beginning With help, the student demonstrates a partial understanding of some of the simpler details and processes (Score 2.0 content) and some of the more complex ideas and processes (Score 3.0 content). - 0.5 With help, the student demonstrates a partial understanding of some of the simpler details and processes (Score 2.0 content) but not the more complex ideas and processes (Score 3.0 content). 0.0 Even with help, the student demonstrates no understanding or skill. -

## Resources

 Web Vocab