Copyright © Laura Dwight Photography

4 years old, 4-12 year olds, African American, African-American, Head Start, Headstart, Hispanic, NYC, New York, USA, age 3, age 4, blocks, blow, blowing, boy, child, corrective lenses, discovery, ethnic diversity, experiment, eyeglasses, female, four years old, girl, glasses, learning, male, people, physics, pre-K, prekindergarten, preschool, three years old, toys, two people, vertical, wooden