How your approach to solving the mathematical task compares to the way your students approached the task. How well students were able to explain why common denominators are used when adding and subtracting fractions. How the mathematics drawings and other visual supports helped students to understand the standard algorithm for adding and subtracting fractions. The insights you gained by analyzing student data. How you might use these insights to address student misconceptions about adding and subtracting fractions and to inform your next steps in instruction. Make direct reference to student work samples in your explanation. As an appendix to your analysis, include the student work samples you reference