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Michael DeFrancesco
Principal, MJHS
(925)335-5820 x2000


Vice Principals

Katie Sanchez
Students A-L
(925) 335-5820 x2021

Zachary Pless
Students M-Z
(925) 335-5820 x2022


To anonymously report a bullying incident  click here or call (925) 335-5888.  You can also send a text message to 925-727-DONT (925-727-3668).

Remind Text Message Updates: text (925) 297-6092 code @0dc3e to sign up

Follow Us On Instagram


MJHS Bullpup Daily Bulletin

Watch the daily bulletin here.

Join The PTSA!

If you haven't joined the PTSA, please do so!  Click here for the information on joining.

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Award for our Recycling Program

The City of Martinez has honored MJHS with the "2015 Paving the Green Path Commercial Recycling Award."  Over the past two years MJHS has reduced its trash heading to the landfill by 50%.  Huge thanks to all the staff members who made this possible.  

Tech Club + Donors Choose = 3D Printer


The Tech Club at MJHS is comprised of a bunch of talented, enthusiastic and downright nerdy middle schoolers whose goals is to purchase a 3D printer for use at the school. Please help them reach their goal by making a donation at Donors Choose; you can get to their website by clicking here.

MJHS has been awarded the Gold Ribbon from the State of California's Department of Education


Gold Ribbon Award.pdf 

Information on Measles

A letter from Erika Jenssen MPH, Communicable Disease Program Chief.  Click hereen Español

Earn .5% Back for MJHS When Shopping on Amazon

Please help MJHS get back easy money when shopping on Amazon!  

  • Amazon donates 0.5% of the price of your eligible AmazonSmile purchases to the charitable organization of your choice.
  • AmazonSmile is the same Amazon you know. Same products, same prices, same Amazon Prime benefits.
  • Support your charitable organization by starting your shopping at Amazon

Read A Letter From Ms. Rossi Regarding Attendance

Click here to read a letter from Ms. Rossi--Director of Students Services regarding attendance during the Holidays.

Authorization to Administer Medication at School

Attached is the form that authorizes school personnel to administer medications to students.  Parents who want their students to receive prescription or over-the-counter medications at school must submit this form.  Please submit to the student services office. Click here for the authorization form

MJHS is a Gold Ribbon School

Gold Ribbon.jpg

Teacher Webpages

Teacher Webpages

(by Department)

Check each teacher webpage for student assignments.

MJHS Twitter

SBAC Testing Info

For spring 2015 SBAC Information click here

Notice of safe storage of firearms

To help everyone understand their legal responsibilities, the attached memo to your email spells out California law regarding the storage of firearms.  Please take some time to review this memo and evaluate your own personal practices to assure that you and your family are in compliance with California law.  Thank you for helping to keep our children and schools safe

California Law Regarding Safe Storage of Firearms.pdf

Spanish Memo Gun Safety.pdf