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About Achievement First Endeavor Elementary School

510 Waverly Avenue
Brooklyn, NY 11238
Phone: 718-622-5994
Fax: 718-789-1649

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September 2011
Number of Students in 2017-18: 460
Hours: 7:15 a.m. – 4:05 p.m. Mon – Thurs; 7:15 a.m. – 1:05 p.m. Friday
Grades: K to four

"Team XOXO"

School Leader

Justin Tesser is the principal of Achievement First Endeavor Elementary School. Previously, Mr. Tesser served as the school’s second through fourth grades STEM dean. He first joined AF Endeavor Elementary School as a second and fourth grade teacher. While teaching, Mr. Tesser was a grade level leader, a curriculum fellow, a leadership fellow, a Saturday Academy director and basketball coach. As a fourth grade teacher, his class had some of the strongest state test results in New York. Mr. Tesser graduated from the University of Missouri with a bachelor’s degree in psychology and minor in family studies and human development. He also received a dual master’s degree from Hunter College in general education and special education. 

AF Endeavor Seen & Heard

Teachers Featured on Good Morning America

AF Endeavor Elementary Students’ Excel on State Test

Visit Our Schools

We are always eager for visitors to see firsthand the extraordinary teaching and learning taking place in our schoolsClick here to learn more about visiting an Achievement First school.