Meet Our Team
K-5 Mathematics
Dr. Miranda Westbrook, Metro RESA K-5 Mathematics Specialist
Dr. Miranda Westbrook has been an educator for over 21 years and currently serves as the K-5 Mathematics Specialist for the Metropolitan Regional Educational Service Agency (MRESA). In this role, she provides site-based professional learning to systems, schools, administrators, coaches, and teachers across 12 metropolitan Atlanta school districts.
Before joining MRESA, Dr. Westbrook was the K-5 Mathematics Professional Learning Specialist for the Cobb County School District, where she supported teachers, academic coaches, and administrators through professional learning, instructional rounds, and resource development. She also spent more than 10 years as an elementary teacher in the Forsyth County School System.
Dr. Westbrook’s experience extends beyond the classroom. She has taught the K-5 Mathematics Endorsement and served as a special project contractor for the Georgia Department of Education. A lifelong learner, she earned a Bachelor of Science in Early Childhood Education, a Master of Education in Middle Grades Education with a concentration in Mathematics, and a Ph.D. in Curriculum and Instruction. She also holds endorsements in K-5 Mathematics, Gifted Education, and STEM, along with Tier 1 Leadership Certification.
Dr. Westbrook is an active member of the Georgia Council of Teachers of Mathematics (GCTM), the Georgia Council of Supervisors of Mathematics (GCSM), and the National Council of Teachers of Mathematics (NCTM). She is passionate about sharing the joy of mathematics with students, teachers, and leaders. She currently serves as Secretary of GCSM and as Program Chair for the 2027 Georgia Mathematics Conference.
Secondary Mathematics
Tynisha Robinson, Metro RESA Secondary Mathematics Specialist
Tynisha Robinson, Ed.S., currently serves as the Metropolitan Regional Educational Service Agency (Metro RESA) 6-12 Mathematics Specialist. This role affords her the opportunity to provide site-based professional learning to districts, schools, administrators, coaches, and teachers in the twelve metropolitan Atlanta area school districts and metro area institutions. Prior to joining Metro RESA, Tynisha was a high school math teacher, 6-12 district mathematics instructional coach, and then a district-level K-12 Mathematics Coordinator. With twenty-four years of experience in and outside of the classroom, Tynisha has proven to be a transformational leader in mathematics. Her experience includes leading professional development through training, professional learning communities (PLCs), classroom support, and assessment development.
Outside of mathematics, Tynisha served as the district-level lead for developing building-level instructional coaches through consistent in-house professional development opportunities and focused on building leadership capacity within the instructional coaches’ role. She led Marietta City Schools as they transitioned from the Common Core Georgia Performance Standards (CCGPS) to the Georgia Standards of Excellence (GSE) and was pivotal in leading teachers through the pedagogical shifts that the new standards required. Tynisha continues to work with the Georgia Department of Education (GADOE). She served as the Geometry: Concepts and Connections team lead for Georgia’s K-12 Math Standards. She is an active member of the Georgia Council of Teachers of Mathematics (GCTM), Georgia Council of Supervisors of Mathematics (GCSM), and National Council of Teachers of Mathematics (NCTM). She serves as the Metro-West Representative for GCTM. Tynisha was the Program Chair for the Georgia Mathematics Conference (GMC) 2024 and is President-elect of GCTM.
Mathematics Endorsement
Dr. Michelle Mikes, Metro RESA K-5 Mathematics Endorsement Coordinator
Michelle has served in education for over 30 years in Georgia. She served as a middle and high school mathematics teacher and, for nineteen years, was the K-12 Mathematics Supervisor for the Cobb County School District. Michelle has been a K-5 Mathematics Endorsement instructor for the past ten years and is now working part-time as the K-5 Mathematics Endorsement Coordinator. She is a member of GCSM, where she previously held the roles of President and Secretary, and received the GCSM Leadership Award. Currently, Michelle is a member of GCTM, where she is the Conference Coordinator and will serve in that position from 2025-2027. Previously, she served as Secretary, NCTM Representative, and GMC Program Chair for GCTM, as well as received the John Neff Award. Michelle recently retired and is working part-time providing professional learning and resources for mathematics teachers.