• Keystone Education

📅 We have a Calendar!

To help keep parents and students updated on our schedule and other important dates and events, we have added calendar page that includes an interactive calendar we will be updating regularly.

The calendar is fully interactive. You can view other months by clicking the arrows next to the month and year. Clicking on calendar entries will open up a pop-up with additional details. Please let us know if you have any comments or suggestions!

We also plan on adding other useful dates and information to the page such as updated SAT/ACT test schedules, so check back often!

The Keystone Team

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😷 COVID-19 Update

Keystone Education will be opening the Fall 2020 semester with distance learning. Until further notice by the state of California, all schools in Los Angeles County cannot offer in-person instruction.

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Tel: 909-860-9345



660 N. Diamond Bar Blvd. #168 Diamond Bar, CA 91765

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