Oster Elementary School office entrance with school name on the blue overhang

Oster Home & School Club

Parents and families building our school community

Volunteer, shop the Cougar Store, and join events that support every Oster student.

Volunteer Donate

Important announcements & upcoming events

Back To School Picnic

Aug 14, 2026, 5:30 PM PDT

Friday, August 14 · 5:30–7:30 PM — celebrate the start of a new school year with friends, families, and the Oster community.

2026 – 2027 Calendar

What's coming up for Oster families.

Back To School PicnicAugust 14, 2026 · Oster Elementary
Oster HSC General MeetingSeptember 2, 2026 · Teacher's Lounge, Oster Elementary, 1855 Lencar Way, San Jose, CA 95124
Oster HSC General MeetingOctober 7, 2026 · Teacher's Lounge, Oster Elementary, 1855 Lencar Way, San Jose, CA 95124
Oster HSC General MeetingNovember 4, 2026 · Teacher's Lounge, Oster Elementary, 1855 Lencar Way, San Jose, CA 95124
Oster HSC General MeetingDecember 2, 2026 · Teacher's Lounge, Oster Elementary, 1855 Lencar Way, San Jose, CA 95124
Oster HSC General MeetingJanuary 6, 2027 · Teacher's Lounge, Oster Elementary, 1855 Lencar Way, San Jose, CA 95124

Cougar Store

Spirit wear, Frozen Friday treats, and birthday shout-outs.

Frozen Friday Birthday Package

$40.00

Frozen Friday Punch Card

$10.00

Happy Birthday Shout Out

$25.00

Oster Gray Tee

$12.00

Oster Green Hooded Sweatshirt

$30.00

Our supportive sponsors

Local partners helping fund programs for Oster students.

Become a sponsor