· Express idea(s) with supporting detail in a piece of formal writing.

· Develop idea(s) with supporting detail and explanation in a piece of formal writing.

· Develop idea(s) convincingly with supporting detail and explanation in a piece of formal writing.

· Use a writing style appropriate to audience, purpose and text type.

·  Use a controlled writing style appropriate to audience, purpose and text type.

· Use a controlled writing style appropriate to audience, purpose and text type, and which commands attention.

· Structure material in a way that is appropriate to audience, purpose and text type.

·  Structure material clearly in a way that is appropriate to audience, purpose and text type.

· Structure material clearly and effectively in a way that is appropriate to audience, purpose and text type.

· Use writing conventions without intrusive errors.

·  Use writing conventions without intrusive errors.

· Use writing conventions accurately.