TK / Kinder Registration

Enrollment is open for students!

Alum Rock Union Elementary School District offers a variety of programs and opportunities, and is accepting enrollment for the upcoming school year. Contact our Student Services department today!

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First day of Schoolyear 2019-2020

August 20th, 2019

Our first day of schoolyear 2019-2020 will be August 20th, 2019. Each school site will have more information regarding welcome back events, required materials, and more.

Principal's Message Dr. Puerta-Sarmiento


Dear Cassell Families!

Welcome to our Cassell Elementary School Website! We hope you will find the information you're looking for on this page. Cassell Elementary is a special place with warm and friendly teachers, students, parents, and staff!  I continue to be grateful for the opportunity to be your principal. I believe in working collaboratively with staff, students, parents, and community partners in order to continue the success at Cassell Elementary. Through this collaboration, I believe we will keep moving our students and school forward.

Our school is committed to creating a safe environment for all students and staff, where positive character counts, and where there is respect for differences in other people, customs and cultures.  We want our students to work hard individually and as a classroom community to achieve an environment where everyone feels valued, and believes they can be successful.  

As parents and educators, we must form a strong partnership to ensure that all of our Cassell Elementary students receive an exceptional education. I encourage you to participate in school activities and special occasions, as well as volunteer if your schedule allows.  I look forward to this school year and many school years to come. If you have any questions or concerns, please feel free to contact me at (408) 928-7206 ext. or


Dr. Sandra Puerta-Sarmiento, Principal