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Administration

Principal_Isabel_Acosta Card IconPrincipal Isabel Acosta

The Acosta family going for a walk
The Acosta family at a SF Giants game
The Acosta Family taking fall pictures
I feel extremely blessed to continue my journey at Pioneer as the new Principal! The past three years as the Vice Principal have been such a pleasure and growing experience for me. I am honored to continue working alongside an amazing staff who work hard to provide our students with the best educational experience every single day. I love being around our Panthers and watching them grow every day!
 
I am privileged to have an amazing family. I am the mom of two wonderful boys and have an amazing husband. We love swimming, playing and watching sports, camping on the beach, going to the movies, and hanging out in our backyard playing and making s’mores. 
 
I am excited about the upcoming school year and cannot wait to have students back on campus and see all of the success and growth that your child will achieve here at Pioneer!
 
Thank you,

Isabel Acosta, Ed.D
Email: Isabel.Acosta@Twinriversusd.org


VICE_PRINCIPAL_MARIA_NUÑO Card IconVICE PRINCIPAL MARIA NUÑO

The Nuño family at a San Jose Sharks game
The Nuño Family
The Nuño Family and Ruldolph
Hello Panthers!
 
I am honored to be the Vice Principal at Pioneer Elementary for 2021-2022. I look forward to working with an amazing staff and wonderful principal to meet the academic needs of our students, parents, and community members.
 
I enjoy being a mom and wife. When I’m not working, I love spending time and traveling with my family. 
 
I look forward to partnering with you to make this an exciting and successful year for our students.  Thank you in advance for your support and commitment. Please feel free to contact me at any time if you have a suggestion, concern, or just a good story to share. It is through our partnership that we will be able to provide our children with meaningful and educational experiences.  
 
Respectfully,
María Nuño