COACHES
Coach Bryan Sparrow joined Lovejoy High school in early 2024 and this summer took on the role of Head Coach of the Robotics program. He has taught a number of STEM-related classes in Frisco and Lovejoy ISDs, and also has ten years of industry experience in CAD. ​He is looking forward to working with the students in Lovejoy to build on their previous successes. Mr. Sparrow has four daughters, three in the Lovejoy ISD.
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Bryan Sparrow
LHS Robotics
Coach
Crystal Gaddie
LHS Robotics
Coach
Since joining Lovejoy ISD in 2017, Coach Gaddie has made a significant impact through her work in both mathematics and engineering education. She has taught a wide range of math courses, including AP Calculus BC, and launched the district’s Introduction to Unmanned Aerial Vehicles (UAV) course. Under her leadership, two competitive drone teams have thrived—expanding STEM opportunities and inspiring student innovation.
Coach Gaddie brings over two decades of experience in education, having begun her teaching career in 2004 with previous roles in Rockwall ISD and Plano ISD. Her contributions go beyond the classroom: she has served as a department chair, curriculum writer, mentor, and held administrative roles in Curriculum and Instruction.
With a Bachelor of Science in Mathematics and a Master of Education in Math Education, Coach Gaddie brings deep expertise and a passion for student-centered learning. Her commitment to excellence, creativity, and hands-on STEM learning makes her a perfect fit for the Robotics Team.
Outside of school, Coach Gaddie enjoys reading, crocheting, and spending time with her family. She and her husband Robert, married since 2007, have two children, ages 13 and 10.
Nathan Aguilar is the VEX Robotics Coach teaching robotics, design and modeling, and Intro to Aerospace and Aviation at Willow Springs Middle School. He earned his bachelors degree in Aerospace Engineering from Texas A&M University. He has experience as a VEX competitor and is looking forward to leading our middle school robotics teams and collaborating with the high school for student success.
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Nathan Aguilar
WSMS Robotics
Head Coach