The mission of The International School is to provide children with an opportunity to acquire second and third foreign language skills through an immersion program within a traditional English college preparatory curriculum. For at least six years, experienced educators (including native speakers) will instruct and guide students, as aptitude, age level, and time spent on tasks are taken into consideration. 

Each year, high proficiency in all English subject matters will be substantiated through California Achievement Test results, while foreign language credits are acquired on Advanced College Placement Tests, gold medals are attained on National Spanish Examinations, and German Language Diplomas (DSD) are earned for written and verbal exams.