The Answer:

According to the National Center for Education Statistics, as of 2007, 1.5 million or 2.9% of U.S. children were homeschooled. The three top reasons for homeschooling were due to concern about the school environment; this included concerns about safety, drugs, and negative peer pressure; to provide religious or moral instruction, and dissatisfaction with the academic instruction available at other schools.

For more information, see Characteristics of Homeschooled Students and Parents' Reasons for Homeschooling.

—The Editors