An Independent School • Grades 5-12

High School Courses (Grades 9-12)

Why spend the summer in class? Students value the ability to delve deeply into one content area without other demands on their schedule. Summer School is open to the public.

Courses are designed for students from any school, entering grades 9 – 12. For-credit classes help students advance in a subject area or fulfill a graduation requirement in order to free up space in their school-year schedule. And rising juniors and seniors can get a jump on the college application process with classes for the SAT and college essay-writing. Prerequisites are required for some for-credit courses.

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about summer 2026

2026 Course offerings

Questions?

SummerSchool@lakesideschool.org
206-440-2700

Summer at Lakeside office closures:

  • December 22 - 31, 2025
  • January 1-2, 2026
  • January 29, 2026
  • February 16 - 20, 2026
  • April 13 - 17, 2026
  • May 25, 2026
  • June 19, 2026