About the Principal


William Ko

William’s deep passion for student learning stems from his belief that education holds the key to a kinder, more compassionate future. An entrepreneur with a creative background, William joined the New York City Teaching Fellows to teach disenfranchised student-inmates within the Rikers Island jails. During his tenure serving some of the city’s neediest students as a teacher, special education coordinator, and then instructional coach, William developed and refined a result-oriented approach to deliver instruction driven by genuine student inquiry.

In his first year as the assistant principal supervising the mathematics department at The Walter H. Crowley School of Leadership at I.S. 5, William led the mathematics department to six times the city’s average gains in student achievement on the state exam. Selected as a Wallace Fellow, William is a graduate of the Summer Principals Academy at Teachers College of Columbia University. He has also completed the NYC Department of Education’s Learning Partners Pipeline for Assistant Principal Program as well as New York City Leadership Academy’s flagship Aspiring Principals Program.


Principal’s letter to the class of 2017

Principal’s letter to the class of 2016