Casey Harl is a Master Teacher in the Teach North Texas program since the Fall of 2017. Mr. Harl worked in the computer science industry for 15 years before becoming a teacher. Before joining TNT, he taught 8th grade math, Algebra, and Pre-AP Algebra/Geometry at Lake Dallas MS. He taught at Lake Dallas ISD for 11 years and received the Teacher of the Year award for the Lake Dallas MS campus in 2017. He holds a Bachelor of Science degree in Computer Science from Texas A&M and a Master's degree in Secondary Education from UNT and is a certified math teacher, grades 8-12.