Teacher Correcting Homework. PhotoAlto/Michele Constantini/ Brand X Pictures/ Getty Images

Definition: A rubric is a tool that teachers use to assess many different types of assignments including written work, projects, speeches, and more. The teacher creates a set of criteria, a narrative to explain that criteria, and a point value associated with that criteria. Rubrics are an excellent way to grade assignments that can often lead to subjective grading.

When rubrics are given to the students before they complete their work, they have a better understanding of how they will be assessed. For important assignments, multiple teachers can grade a student's work using the same rubric and then those grades can be averaged. A method similar to this is used when instructors working for the College Board grade Advanced Placement essays.

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