Every year in May students go on a theme-based Focus Week where they enrich themselves through travel or local activities, leaving "the confines of the classroom to expand their knowledge".

In every year since it was founded, ICS students have achieved top-tier scores on national and state achievement tests like Washington Assessment of Student Learning (WASL) test, the High School Proficiency Exam (HSPE), and Smarter Balanced Assessment Consortium (SBAC).

In 2014, Andrya Packer, one of the school's humanities teachers, was selected to complete a Fulbright Scholarship in Scotland.

Construction of the adjacent new building began in June 2012 and finished in August 2013, prior to the start of the 2013-2014 school year.

[15] Every May, ICS sends its students outside the classroom environment for a week to "explore concepts outside those normally encountered in schools".

Students select the Focus Week that they have interest in and are placed in a small group to meet with throughout the school year.

Each group is assigned a faculty adviser who helps plan, organize, and schedule the itinerary for the week-long education experience.

The students learn many real-world skills during these camp days, from leadership to communication, and they participate in many whole-school activities such as creating and performing skits and singing songs at a campfire.

The program is an internationally recognized high school youth-based organization which provides opportunities for its members to become involved in the community by volunteering and serving in areas that need assistance.

Students perform in regional, state, and national competitions that range from Economics to Graphic Design to Business Communications, and has a history of competing well.

The chapter has won numerous individual and team awards on the local, state, and national level.

Such events along with service projects allow members to gain confidence and skills required for future careers.

Combining debate with drama, the club prepares two 15-person teams for competitions at the regional and state level.

The club teaches hard-working students about civil liberties, public speaking, legal reasoning and impromptu problem-solving.

The club is a simulation of the United Nations that aims to educate participants about civics, effective communication, globalization and multilateral diplomacy.

Many former ICS students have served in leadership positions at local conferences and received honorary recognition in their part of the diplomacy simulation.

In 2013, a CODE Club was established to encourage young students to become more involved in computer science and programming.

Since ICS accepts any student in the Lake Washington School District, it is prohibited from sports competition.