In 2010-11, Wake County Public School System (WCPSS), North Carolina Department of Public Instruction (NCDPI), and SMART Technologies began a two-year collaboration to promote the use of formative assessment in mathematics classrooms at three Wake County public schools: Millbrook Elementary, East Millbrook Middle, and Millbrook High school. The Formative Assessment with Technology project was unique in its design: participating mathematics teachers at an elementary, middle, and a high school received face-to-face training on formative assessment and the use of SMART Boards, additional training on formative assessment components using online North Carolina's Formative Assessment Learning Community Online Network (NC FALCON) modules, and two years of follow-up ongoing support similar to coaching on a monthly basis. The second year (2011-12) of the project was studied to determine the fidelity of implementation of the formative assessment practices and the project's impact on student achievement. Classroom observations and surveys of teachers and students showed that implementation was moderate, and it varied widely across teachers. Certain targeted practices were reported or observed much more often than others. High turnover in the teachers participating in the project likely contributed to the uneven implementation. High school staff had the highest level of implementation of training concepts as well as the highest use of the electronic response tools for assessment. An appendix includes: Attributes of Effective Formative Assessment From Council of Chief State School Officers (2008) and a copy of the Formative Assessment Classroom Observation Checklist.