Nationally, student performance in math has been flat, and achievement gaps persist. And with a growing economy driven by industries in the science, technology, engineering, and math (STEM) fields, educators are tasked with instilling interest in and preparing students for college studies and careers that will supply these in-demand jobs. Now, more than ever, it is critical that educators reflect on the daily experiences of their students, and consider how they are preparing them to meet the demands of more rigorous math standards. For this analysis Education Trust reviewed over 1,800 middle-grades assignments from over 90 math courses from 12 middle schools in six districts across the country. They used a framework comprising five key areas: (1) alignment to the Common Core; (2) cognitive challenge; (3) aspects of rigor; (4) communicating mathematical understanding; and (5) the potential for motivation and engagement. Findings showed: (1) Alignment with at least a part of a grade- or course-appropriate math content standard was high: roughly three-fourths of assignments; (2) Although generally aligned, at least in some part, with grade-appropriate standards, the assignments tended to have low cognitive demand, over-emphasize procedural skills and fluency, and provide little opportunity for students to communicate their mathematical thinking; and (3) These results were not just isolated to small districts or in districts implementing decentralized curriculum practices.