Chief Sealth International High School


Parent Information

Welcome Letter
All families of enrolled CSI students will receive a WELCOME LETTER from the school in mid- to late-August. This letter will give you all the information you’ll need for the start of school: dates, times, contact lists, bell schedules, etc. Look for that in your mailbox!

Recommended supplies for CSI 9th-12th Graders.

Sports Info:   the CSI Athletic page  (find the permanent link under the Student Activities tab) has all the deadlines and links to forms and schedules that you and your athlete will require. ( All sports but football : athletic packets, fees, and current physical must be turned in no later than August 18th at 3pm;  Football  athletic packets, fees, and current physical must be turned in no later than August 15th at 3pm. 

Would you like to volunteer?  Your teenager might not be thrilled with the idea, but their teachers will be! Please contact Lori Douglas at 

PTSA website
:  Chief Sealth PTS
Want to receive regular updates from PTSA via email? It’s a great and easy way to stay informed.

Make CSI PTSA the beneficiary when you shop at (Amazon donates up to 10% of your purchase price at no extra or hidden cost to you!)

Band/Orchestra/Jazz:  Please check back soon! A newly redesigned music website will be posted in August of 2021. In the meantime, you may contact Brittany Delong, Jorge Morales, or Joey Roberts with any questions. 

Grades & Other Information about Your Student’s Experience/Performance:  can all be found via the ‘Student Portal.’
The Source allows parents, guardians, and students to view student schedules, assessment scores, attendance, library information, and secondary student grades.  Read more about the Source.
Schoology is a Learning Management System (LMS) tool that teachers may use to communicate with parents, guardians, and students about day-to-day coursework, such as dates, assignments, and homework submission. 

Absences/Tardies/Appointments:  There is an entire page to help you know what to do if your student misses school for all or part of a day. You can find that page here.