A technology infused public school, preparing students academically, personally and socially to succeed after high school. #CityHighPgh #HighSchoolAtLifeSpeed A technology infused public school, preparing students academically, personally & socially to succeed The MISSION of City Charter High School, a technology infused public school, is to graduate students who are academically, technologically, personally and socially prepared to succeed in post-secondary education or training. Using a team approach, City High cultivates a safe, supportive and academically rigorous environment by recognizing and nurturing individual talents, needs and skills.