Argument Structure Excellent: States a clear, specific claim in the introduction; each body paragraph advances one distinct reason supporting the claim, in a logical order; conclusion restates the claim with a call to action. Proficient: States a clear claim; body paragraphs each cover one reason, though order may not be fully logical; conclusion restates the claim without a call to action. Developing: Claim is present but vague or buried mid-paragraph; at least one body paragraph mixes two reasons together or repeats a prior point; conclusion is present but doesn't clearly connect back to the claim. Beginning: No clear claim identifiable, or claim contradicts itself across paragraphs; reasons are not separated into distinct paragraphs. Evidence Use Excellent: Uses 3 or more pieces of specific evidence (facts, examples, or quotes), each directly explained in relation to the claim. Proficient: Uses 2 pieces of specific evidence, each explained, or 3 pieces with minimal explanation. Developing: Uses 1-2 pieces of evidence but explanation is missing or only restates the evidence without connecting it to the claim. Beginning: No specific evidence used, or evidence is a personal opinion presented as fact with no support. Grammar Excellent: Fewer than 2 grammar or spelling errors across the essay; errors, if any, do not interfere with meaning. Proficient: 3-5 errors; meaning remains clear throughout. Developing: 6-9 errors, with at least one instance where meaning becomes unclear or confusing. Beginning: 10+ errors, or errors are frequent enough that multiple sentences are difficult to understand.