April 25-27- ACT Aspire for 9th -10th graders. See calendar below
May 2-5- SBA for content areas. See calendar below.
 May 26- Last day of Classes
June 8- Class of 2017 Graduation Ceremony at 2pm UOG. Must have tickets to attend. 

      SCHEDULE 2016-17

6:45 a.m. 

Warning Bell

 6:50 a.m. - 8:30 a.m.

1st/4th BLOCK (100 Mins.)

8:35 a.m. – 9:00 a.m. 

Homeroom (25 Mins.) -  *1st Period

9:00 a.m. – 9:15 a.m. 

BREAK (15 Mins.)

9:20 a.m. – 11:00 a.m.

2nd/5th BLOCK (100 Mins.)

11:00 a.m. – 12:00 p.m.

LUNCH (60 Mins.)

12:05 p.m. – 1:45 p.m.

3rd/6th BLOCK (100 Mins.)

1:45 p.m.

Dismissal/Release from School

  • Gates Open: 6:00 a.m. - 1:45p.m. (Busses)
  • Main Office: 6:45 a.m. - 2:15 p.m. except on Holidays and Weekends.
  • Business Office: 6:45 a.m. -1:45 pm.
  • Counseling Office:6:45 a.m. -1:45 pm. 
  • Nurse’s Office: 6:45 a.m. – 1:45 p.m. 
  • Students are not allowed on campus prior to 6:00 a.m.


Pick up time: 5:30 am

For more information call 300-5570.


Need Service Learning Hours? Visit the www.guamservicelearning.com from the Agyuda Foundation Program and also your teachers and counselors. 

April 29- 8 to 12pm. General assembly and sign in will in be in the cafeteria. This will also be counted as service learning. 
Starts on April 17, 2017 from 2 to 5pm. Students must be picked up by 5pm. 

May 11 at 6pm at the cafeteria. 
 Bring money for raffle tickets.

-Check parent portal for progress reports. Should you need assistance please contact main office. 
All attendees will get a dress down pass.

May 26,2017- End of 4th Quarter


04/03-04/07/17: Have you completed your 10 hours on Key Train to prepare you for the Work Keys Assessment? If you have, please see Mrs. Rosario at the library to schedule your test for Work Keys. Space is on a first come, first served basis.


04/03-04/07/17: If you have not seen Ms.Lisa at the Main Office for your Senior Acknowledgement form, please do so. If you are not responsible for your graduation documentation requirements, then you will have to pick up your diploma AFTER your graduation ceremony.


01/18-04/08/17:  The Chamber Business Women’s Network, a sub-committee of the Guam Chamber of Commerce, invites all junior and senior students to stop by Catholic Social Service office in Barrigada and checkout our “Nina Project Boutique Day”. On Saturday, March 4th from 9:00am to 12pm, new and gently used formal dresses for the ladies, suits for men as well as fashionable accessories will be on display for students to choose from. We will offer a wide range of stylish and fashionable outfits that will surely make you shine on Prom night.


01/19-04/28/17:  Every Friday, the librarian will be offering a 15 minute training session on technology. Prerequisite: Acceptable Use Policy (AUP) agreement signed form and a gmail account.


11/29-04/30/17:  Would you like to win $2,500.00, an all expense paid 2 day trip to Washington DC to meet the Secretary of State & tour the US Institution of Peace, and a full scholarship for a semester at the sea upon enrollment at a university? All you need to do is write an essay that provides recommendations to the ambassador about the crisis involving refugees and internally displaced persons in that country. Essay must be written in essay format. Please see your teachers for more assistances. Essays are due on March 15, 2017.

Registration Requirements
  • All incoming 9th grade students must submit an updated PPD results and physical exam prior to Aug. 18,2016.
School Uniforms
  • Uniforms may be purchased at Gino's in Tamuning, across FHP Vision building. You may also contact the vendor at  477-8945.
Progress Reports
  • Please be advised that effective SY 2015-16, THS no longer issues paper progress progress report. Parents/Guardians are highly encouraged to access their child's grade progess through the Parent Portal, website address: https:\\powerschool.gdoe.net

Department of Education Vision Statement

“Every student:  Responsible, Respectful and Ready for Life”

Department of Education Mission Statement

“Our Educational Community…Prepares All Students for Life, Promotes Excellence, Provides Support”

Tiyan High School Mission Statement

At Tiyan High School, our mission is to provide a challenging learning environment that promotes academic excellence which inspires students to be globally competitive.

Tiyan High School Goals

Goal 1.  Tiyan High School students will graduate prepared to pursue post-secondary education on- or off-island or to assume gainful employment within the public or private sector. 

Goal 2. All Tiyan High School students will successfully progress from grade to grade and from one level of schooling to another in order to maximize the opportunities to successfully graduate from high school.

Goal 3. All Tiyan High School instructional personnel will meet high standards for qualifications and ongoing professional development and will be held accountable for all assigned responsibilities.

Goal 4. Tiyan High School Community will establish and sustain a safe, positive and supportive environment.

Goal 5. All GDOE operations activities will maximize the critical uses of limited resources and meet high standards of accountability.