Klein-Spring Montessori School at 18026 Strack Drive, Spring is celebrating its 35th anniversary this year. The school first opened in 1984 with two classrooms, four staff members and 40 children, and it now has seven classrooms, 25 staff members and 170 children. The school teaches children 16 months to prekindergarten and has been managed by the same family since 1990. 281-370-5001. www.kleinspringmontessori.com