Our People

Liz Leebens, Co-Founder

Liz Leebens is a school leader and co-founder of Baychester Middle School.  She currently leads curriculum, data-driven instruction, observation/feedback, and professional development at Baychester.  After graduating with her Bachelor's degree in History and Education from Denison University in Granville, Ohio, Liz joined Teach for America in 2007 in New York City.  She has taught reading, writing, and history in both district and charter schools throughout New York City and Newark, NJ. She is a graduate of the Relay National Principals Fellowship and holds a Masters degree from NYU’s Steinhardt School of Education in Leadership.  

Shawn Mangar, Co-Founder

Shawn Mangar is an educational leader, who builds school culture that fosters trust and inspires the development of both students and staff. He is known for driving organizational excellence and conquering every obstacle with a novel approach. Starting his career as a special education teacher, Shawn followed his passion for developing others by becoming a top-rated NYC Teaching Fellow trainer. He is founder and principal of the award-winning Baychester Middle School in the Bronx, which develops not only distinguished scholars but also extraordinary teachers, 5 of whom have already become national educational leaders.

Shawn and his school, Baychester Middle, have been featured on the Teaching Channel, in Quanta and Wired magazines, and in books, such as The Together Leader: Get Organized for Your Success - and Sanity! and Teach Like a Champion 2.0: 62 Techniques that Put Students on the Path to College. He has served on the Mayor’s Leadership Team on School Climate and Discipline and is a sought-after speaker for education programs on data-driven instruction and teacher training. Having been born, raised, and educated in the district where he works, Shawn explores new horizons in long training runs for his many marathons.