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Principal's Message

Dear Parents and Guardians:

My name is Gabriel A. Griego, and I am the new Proud Principal of the Famous Morningside High School (MHS).  I come to you with a vast amount of experience as I have been an administrator for the past twenty-three years, where my first Assistant Principal job was at MHS from 2000-2001.  I have come back home, and I am very excited to lead again at MHS.  

I was a High School Assistant Principal for eight years, Middle School Principal for four years, and High School Principal for nine years.  With all this experience, I was able to work with administrative teams, teachers, support staff, students, and families in addressing our students that needed the most help.  At Bassett High School, with 89% socially disadvantaged students, we grew our graduation rate to 98.3%, which was the highest growth in the San Gabriel Valley.   We were recognized in the San Gabriel Valley Tribune.

I am excited to work with the whole MHS community in bringing our graduation rate up from 86%.  My education vision is to work hard every day to make sure all our students get the interventions needed to succeed in high school.  MHS provides a comprehensive A-G master schedule, a tremendous AVID program, and Project Lead the Way to support a foundation for our students to be college and career-ready when they graduate. 

I do want all our parents to be involved in the following ways: making sure their child is doing their homework and assist them with preparing for their exams, volunteering for our governing boards of School Site Council and English Language Advisory Committee, or attending all meetings the school has so you can be part of your child’s success.  

I welcome everyone back to the 2021/2022 school and ensure that our students have a safe, enlightening, and outstanding high school experience.  Please check our website for all information that is happening at MHS.

I look forward to meeting you, and remember my office is always open for any questions, suggestions, or concerns you might have for me. 

Gabriel A. Griego
Very Proud Principal of the Famous Morningside High School




Mural Contest- Theme is STEM

1. Submit your S.T.E.M mural design to the emails below by the February 22nd 2. MSS and Morningside faculty will select a winning design 3. 10-15 Morningside students will outline and paint the mural on campus (~12’ x 16’) 4. It will likely take 7-10 hours to execute (spread over 2 days) 5. Participating students will receive volunteer credit for hours 6. Winning design will receive a $100 gift card 7. Mural and participants will be featured on the MSS website: Criteria: 1. Designs should be bold, not too complicated to paint, colorful and illustrate a S.T.E.M concept 2. Designs are not meant to be like textbook figures, but rather artistic and thought inspiring Submit your design to Ms. Joyner via email:
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