Whether you are new to OIS or a returning family,

we extend a warm welcome to our community. 

***Registration will open soon!***

Communications for the upcoming year will be sent in late July 

from both Orinda Union School District and OIS Parents' Club.

Your Parent Checklist

2026-27 Academic Year 

Register / Re-Register

Opens Late July | Complete via Aeries Parent Portal & OIS Membership Toolkit (MTK)

• Stay Informed: This ensures you receive all critical school and community communications.
• Unlock Purchases & Sign-Ups: You must be registered to access:
  • PE Uniforms (mandatory for all students)
  • After-School Activities (Bulldog Sports, Theater, Improv)
  • Social Events (School dances and parent parties)
  • OISPC Directory (To connect with other families) 
  • Connect with Others Through the OISPC Directory

Update Your Information

Log in using the name and primary email from your district registration. (Note: If you used MTK at your elementary school, use that same email to automatically link your accounts.)

Action Required: Add Your Students

• Manual Entry Required: Your students are not automatically loaded into your account—even if you already completed Parent Data Confirmation in AERIES.

• How-To: You must manually ADD your student's name(s) to your profile.

• Final Step: Complete your Directory/Publish Preferences.

Support Our School: Donate to ONE-OIS!

• Why it Matters: State funding alone does not cover all our school's needs. Parent contributions directly fund vital personnel and programs.

• 100% Impact: Every dollar donated is entirely invested in our students' success.

• Learn More: Full details on our fundraising goals and how donations are used are available on the donation page.

Upcoming Purchases & Sign-Ups

• PE Uniforms: Link coming soon. (Reminder: You must add your student to your account first!)
• Teacher & Staff Appreciation Fund: Link coming soon. Contribute to support our educators.
• Volunteer Opportunities: Link coming soon. Sign up to get involved.

Please reach out to OISPC if you have any questions!

Let's make it a great year! Go Bulldogs!