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iRubric: Geometry Proofs rubric

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Geometry Proofs Geometry Proofs Rubric Code: PX9BAB2 By hafidd Ready to use Public Rubric Subject: Math Type: (Other) Grade Levels: 9-12, Undergraduate

Geometry Proof Two-Column Proof Rubric
	Excellent Proof Expert 4 pts	Satisfactory On the Way 3 pts	Developping Starting 2 pts	Needs Improvement Preparing 1 pts
Key Elements	Excellent The given, the prove statement, and the appropriate amount of statments and reasons are inclued in the two-column proof. <BR> The diagram is drawn correctly.	Satisfactory One key element is missing.	Developping More than one key element is missing.	Needs Improvement None of the key elements are present.
Structure	Excellent The proof is written as a two column proof.<BR> The columns are labeled.<BR> All statments and reasons are numbered.	Satisfactory One structure element is missing.	Developping More than one structure element is missing.	Needs Improvement There is no evident structure or the structure does has no relation to the task requested.
Flow	Excellent The proof uses sound reasoning based on algebraic properties, definitions, postulates, and theorems with no gaps in the reasoning.	Satisfactory There is one gap in the reasoning of the proof.	Developping There are multiple gaps in the reasoning of the proof.	Needs Improvement The steps of the proof have no apparent connection to each other, and the postulates has no connections to the statements.
Clarity	Excellent The proof is written using accepted geometric/algebraic terms and notation	Satisfactory The proof is written mostly using accepted geometric and algebraic terms and notation	Developping The proof is written using some accepted geometric/algebraic terms and notation.	Needs Improvement The proof is written with no accepted algebraic and or geometric terms, or the terms used do not fit in this particular proof.