Welcome to Cornerstone Prep

Cornerstone Prep Lester Campus is a public, free tuition, pre-Kindergarten-through-fifth-grade neighborhood school located in the Binghampton community. Cornerstone Prep is part of The Achievement School District, a new statewide district committed to dramatically improving the education of every student regardless of zip code, race, or family income. Cornerstone Prep equips all students with the wisdom and knowledge necessary to succeed in college and to become leaders in their community.