Great Lakes Academy is celebrating its 20th anniversary in Plano at 6000 Custer Road, Bldg. 7. The private school enrolls students in fourth grade through 12th grade. Great Lakes Academy is a nonprofit private school, and it offers educational and college-preparatory services to students with learning differences, such as Asperger’s syndrome; attention deficit hyperactivity disorder, or ADHD; and Level 1 autism spectrum disorder. The school’s maximum classroom size is 10 students. 972-517-7498. www.greatlakesacademy.com