Online Registration through PowerSchool for the 2025-2026 School Year will begin on April 29, 2025.
For returning HHHS students registering in Grade 10, 11, or 12, please use this High School Planning Sheet to ensure you have all the courses needed to graduate high school AND to enter a post-secondary program of choice.
Online Registration Guide Grade 10-12
- HHHS Registration Website - explains courses available and course descriptions and course sequence charts
- Registration How To Video - how to plan and prepare to register for classes
- PowerSchool Registration Video - this video will help CURRENT HHHS students log into their PowerSchool account and register for High School Courses
- Please click HERE for the Advanced Placement Yearly Plan for the Sciences