We are open for in-person instruction in our center. Live, face-to-face online instruction is also available via Mathnasium@home.

Holiday Hours

Our center will be closed the following days:

Martin Luther King Jr. Day
Jan 15, 2024
Presidents' Day
Feb 19, 2024
Easter Weekend
Mar 30, 2024
Memorial Day Weekend
May 25, 2024
Memorial Day
May 27, 2024
Fourth of July
Jul 4, 2024
Fourth of July Weekend
Jul 6, 2024
Labor Day Weekend
Aug 31, 2024
Labor Day
Sep 2, 2024
Veterans Day
Nov 11, 2024
Thanksgiving Break
Nov 27, 2024
Thanksgiving Break
Nov 28, 2024
Thanksgiving Break
Nov 30, 2024
Christmas Break 2024
Dec 24, 2024
Christmas Break 2024
Dec 25, 2024
Christmas Break 2024
Dec 26, 2024
New Years Holiday
Dec 31, 2024
New Years Holiday
Jan 1, 2025
New Years Holiday
Jan 2, 2025

Hours of Operation

Instructional Hours


Office Hours

By Phone

What makes Mathnasium different from other tutoring programs?

Learn About the Mathnasium Method™

The Mathnasium Method™

Why Choose Mathnasium?

Face-to-face Math-Only Instruction

In-Center or online, our instructors work face-to-face with your child to focus on their unique math learning needs.

Customized Learning Plans

We create a customized plan to meet your child's unique educational needs and goals.

Math is Fun at Mathnasium

We have engaging instructors, awesome student rewards, and a fun learning space.

Schedule your math skills assessment today

Latest News & Posts

Fourth of July Holiday Closure Notice

Jul 2, 2019 | Diamond Bar

Dear Mathnasium Parents,   Mathnasium of Diamond Bar will be closed Thursday, July 4th, in observance of Independence Day. We will resume our normal business hours on Saturday, July 6th.    We hope you enjoy your time off! We lo..

June News at Mathnasium of Diamond Bar!

Jun 4, 2019 | Diamond Bar

When you're part of the Mathnasium family you know that summer fun and improved math skills go together like peanut butter and jelly! We know how to make these weeks away from school the perfect blend of fun and productivity, so that your child is con..

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