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The Technology Student Association (TSA) is a national organization of students engaged in science, technology, engineering and mathematics (STEM). Open to all students, TSA’s membership includes over 233,000 students in approximately 2,000 schools spanning 49 states. TSA is supported by educators, parents and business leaders who believe in the need for a technologically literate society. Members learn through exciting competitive events, leadership opportunities and much more. From engineers to business managers, our alumni credit TSA with a positive influence on their lives. One of TSA’s most notable alumni, Chad Hurley, co-founder of YouTube, is a graduate of Twin Valley High School.