This statement of confidence by a paraeducator came after her participation in Doing the Math With Paraeducators: A Research and Development Project. Funded by the National Science Foundation (NSF DRL-1621151), the project was designed to provide experiences to support professional growth by building paraeducator mathematical knowledge for teaching and leadership in Boston Public Schools. Paraeducators can play an important role in schools by supporting, complementing, and extending the work of classroom teachers. They have unique assets to share and are more likely to reflect student demographics than teachers. For example, in Boston, 86% of students are nonwhite; 71% of paraeducators are also nonwhite, compared with only 38% of teachers. Furthermore, paraeducators often live in and establish close ties with the communities where they teach, making