#### MAT-HS.G-CO.11.a

 MAT-HS Targeted Standards(G) Concept: Geometry(CO) Domain: CongruenceCluster: Prove geometric theorems MAT-HS.G-CO.11.b Prove theorems about parallelograms. (Focus on Prove for G-CO.11) (Theorems include but are not limited to: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.)

• I can
• I can

• I can
• I can

• I can
• I can

• I can
• I can

## 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. Analyze a proof with errors and make corrections - 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. The student can perform all the actions for each concept listed below: Identify relevant information Arrange reasoning in a logical sequence Support reasoning using appropriate justifications (theorems, postulates, definitions, etc.) 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). Partially prove but reasoning has gaps, steps missing, incorrect reasoning, etc. Recall theorems, definitions, and postulates Fill out justification given a 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