Jeff Harker has been working in and around public education for over 36 years. He spent 31 years as a middle school mathematics teacher, literacy coach, and cross country coach. He retired from the classroom in 2021 and is now the Secondary Mathematics Specialist for Keep Indiana Learning (KINL), the professional development arm of the Central Indiana Educational Service Center (CIESC) in Indianapolis. He travels the state helping teachers improve their craft and perfect the art of teaching. He produces 6 podcasts for KINL and is the host of two of them, Home Grown about general education topics and Middle School Masterclass about issues specific to the middle grades. Jeff is also one of the Central 1 Regional Team Leaders in Indiana for the National Council of Supervisors of Mathematics (NCSM), and is the current President Elect for the Indiana Council of Teachers of Mathematics (ICTM). He has presented at the district, state, and national levels and has dedicated his career to helping others through education.