Authors & Presenters

Donna Simpson Leak, PhD, is superintendent of Community Consolidated Schools District 168 in Illinois. She has trained thousands of teachers and presented at more than 200 conferences worldwide.

Erin Lehmann, EdD, currently serves as an assistant professor for the University of South Dakota. She is an author, leader, and facilitator, advocating for mathematics and high levels of learning for all.

Ashley Mistretta is a K–8 mathematics specialist and is currently working as an instructional coach at Rose Hill Elementary School, part of Fairfax County Public Schools.

Brittany Mozingo has more than a decade of experience as an educator in at-risk schools. She is currently the instructional coach at Fern Creek High School, a DuFour Award–winning school in Louisville, Kentucky.

Sean Nank, PhD, is a presidential awardee, professor, presenter, and educator. He teaches at California State University San Marcos and the American College of Education.

Jennifer Novak is an educational leader with a passion for supporting quality mathematics education as a supervisor and coach at the district and state levels. Jenny is currently the director of curriculum, instruction, and assessment in Howard County Public Schools in Maryland.

Janet Nuzzie is a published author with over 28 years of experience in mathematics education, including curriculum and leadership roles at the district, regional, and state level. She specializes in supporting campus leaders and teachers in the implementation of professional learning communities and has facilitated her district’s implementation of a multitiered system of supports for mathematics intervention.

Jackie Palmquist is a national presenter and educational consultant with over 30 years of high school classroom mathematics teaching and leading experience. Her leadership emphasizes and supports collaborative planning and current research-informed best instructional practices.

Sharon Rendon is director of professional learning for the CPM Educational Program, a nonprofit organization, where she specializes in designing and delivering professional learning for secondary math teachers.

Nick Resnick is a K–12 education specialist, focusing his work on mathematics, school improvement, assessment, intervention, and PLCs. Previously, he served as a secondary mathematics teacher, K–12 mathematics specialist, and school site administrator.