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Contact Information


Mrs. Crystal Castaneda, Principal
Heidi Wise, Office Manager

(925) 335-5830

Fax:(925) 335-5891

Woodbridge - On-site Day Care

(925) 228-0672


Parent Student Handbook 2015-2016

Parent Student Handbook-Spanish

My School Bucks - Deposit breakfast/lunch money online

​Heartland Apps - online application

LJE Cookbook

Click here to check out our wonderful cookbook!

Firearm Storage

Parents and Guardians,

Please read this important information regarding firearm storage and keeping your child save.

Firearm storage

Monday is a non school day

shell Essay Contest

As part of our CENTENNIAL CELEBRATION, Shell Martinez announces a Student Essay Contest. This competition is open to all students within the Martinez Unified School District.  Click here for the flyer. 

In recent years, “sustainability” and “sustainable development” have become more than just buzzwords, but also major goals for our state and national leaders, as well as Shell Martinez. To us, sustainable development means working with governments, partners, communities and others to deliver more energy in economically, socially and environmentally responsible ways.
Here at Shell Martinez, we’ve already reduced our greenhouse gas emissions equal to that generated by about 22,000 homes — and are exploring projects to do even more, not to mention save about 1,000 gallons of water a minute. This is what sustainability means to us.
In this competition we challenge you to move beyond the buzz and explore what sustainability means to you. How do you understand sustainability? What is the meaning of sustainability in your own life, in your local community, and in the greater world? We look forward to your thoughts.
 Click here for more information about the Shell Essay Contest
Shell Essay.jpg

September is Attendance Awareness Month!

Attendance gaps turn into achievement gaps!  Attending school regularly helps children feel better about school—and themselves. Start building this habit in preschool so they learn right away that going to school on time, every day is important. Good attendance will help children do well in high school, college, and at work.

CA Physical Education Requirement Accountability

Students in grades 1-5, at all four elementary schools in the Martinez Unified School District, actively engage in the California requirement of 200 minutes of Physical Education every 10 days.  In order to assure compliance with this legal requirement, each site has established “Prep C” protocols for those grade levels that may not reach the 200 minute requirements due to minimum days, teacher prep, and / or assemblies.  These established practices of running laps, dance & movement, and cardio-conditioning outside of the PE class are documented and verified by the site administration on a monthly basis.

2015 SBAC Testing Information

Please read the attached information regarding the 2015 SBAC test.



Information on Measles

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

Understanding the New K-5 Report Card

For more information Click here

Program Improvement Information

Staying Healthy During Cold and Flu Season

As we head into the cold and flu season it is important that parents know there are measures they can take to help keep their families healthy and to prevent the spread of cold viruses and influenza at school and in the greater community.  Please read the following information on how to keep your child healthy.  Click here

Las Juntas Elementary School Calendar

Fact Sheets on Ebola

It is important to know that there are no reported cases of Ebola in Contra Costa County, or anywhere in California, and the risk is very low. But there are plans in place to contain the disease and protect the public in the unlikely event of a local case.  Here is a letter from Contra Costa Health Services Department and a fact sheet in English and a fact sheet in Spanish.