It uses language that is clear, effective and varied. Writers support their ideas with appropriate reasons and well-chosen examples, skillfully using a variety of sentence structures. It exhibits few errors in the use of conventions of grammar, punctuation, capitalization, and spelling. 2 Student work demonstrates essential mathematical thinking and understanding of mathematical ideas. Responses are usually correct, although the work may contain minor flaws.
Communication is adequate.
There is an acceptable use of tools and techniques. Student work demonstrates general understanding of a whole text. Student work responds to the demands of the writing assignment, generally communicating the writer's knowledge and clarity of thought. It is appropriately adapted to its audience, purpose and subject. It is coherent but occasionally limited in development, and may contain predictable vocabulary with some inappropriate choices of words.