East Harlem Tutorial Program Recipient of $15 Million Challenge Gift From Marilyn and James Simons, Among Top Five Individual Gifts Ever to Support New York City K-12 Public Education, Largest of Its Kind in East Harlem NEW YORK, NY--(Marketwired - Dec 27, 2013) - East Harlem Tutorial Program (EHTP), the community-based operator of college prep after-school programs and public charter schools, has received a $15...