Highline Public Schools
15675 Ambaum Blvd. SW Burien, WA 98166

Office Hours:

Monday-Friday: 7:30 a.m. - 4:30 p.m.

Highline Public Schools
15675 Ambaum Blvd. SW Burien, WA 98166


Trimester Transition Update

Our high schools will transition to a five-period-day trimester system in September 2020. Here is an update on how we are preparing.

Graduation requirements

The school board is considering changes to graduation requirements for the class of 2023 and beyond. They are reviewing feedback from the March 2019 Thoughtexchange as well as from the trimester steering team.

Course length: The trimester steering team is considering recommendations made by teachers in each content area. Here is what has been determined so far:

  • Algebra 1 will be a full year (3 trimester) course
  • Most courses that are currently 1.0 credit, yearlong courses will be 2 trimesters in the new system. (Bear in mind, class periods are longer in the five-period day.)
  • All students will participate in a one-trimester course focused on High School and Beyond planning. Our Secondary Success and College Readiness team will develop the course based on staff and community feedback, as well as researched best practices.

Teacher support and planning

Instructional specialists are coordinating a plan for aligning routine framework revisions to the trimester structure.  Beginning next fall, teacher representatives will work with central office instructional specialists to revise pacing guides and frameworks. 

Teachers will have professional learning opportunities throughout the 2019-20 school year on teaching in longer class periods and how to assess and report grades in a trimester calendar.

Systems planning

The trimester steering team-- made of up of all high school principals, one counselor from each high school and Central Office leadership from all departments--will continue to meet through the 2019-20 school year to provide guidance and recommendations on system implementation.