A professor in the Department of Teacher Education and Administration where she has worked for the past ten years, Dr. Harrell currently teaches the following courses for the Secondary Education Program: The Multicultural Curriculum (EDSE 5005), and Instructional Strategies in Secondary Classrooms (EDSE 5003). Her research interests include the topics of science teacher quality and science teacher effectiveness. Specifically, her research explores teacher quality variables such as coursework, GPA, and age of coursework, teacher efficacy, classroom environment, and the impact of the teacher on student learning. As program administrator for the Secondary Online Teacher Certification program, she coordinates recruitment and advising for over 300 graduate students. In 2008 she was the UNT nominee for the Minnie Piper Stevens Teaching Award, and she received the UNT Presidents Award for Teaching in 2009. In 2011 she received the UNT Teacher Scholar Award.