iRubric: Solving Quadratic Equations by Graphing rubric

Minor errors exist when the student determines if the parabola opens upward or downward direction.

No errors exist when the student determines if the parabola opens in an upward or downward direction.

No errors exist when the student determines if the parabola opens in an upward or downward direction. The student provides justification for his/her thinking.

No errors exist when the student determines if the parabola opens in an upward or downward direction. The student can provide a rationale for his/her thinking by making a reference to each equation.

An attempt is made to determine the vertex for each equation, but some minor errors exist.

The vertex is determined for each equation and no errors exist.

The vertex is determined for each equation and no errors exist. Some steps for determining the vertex are shown.

The vertex is determined for each equation and no errors exist. All steps for determining the vertex are shown.

An attempt is made to answer the questions. The student's response does not adequately answer the question.

All questions are answered correctly. The student response provides some evidence of mathematical thinking and reasoning.

All questions are answered correctly. The student response provides evidence of mathematical thinking and reasoning. It may contain examples to justify thinking.

All questions are answered correctly. The student response is specific and detailed. It provides strong evidence of mathematical thinking and reasoning.