COVID-19 UPDATE — Please note: Due to the coronavirus outbreak in the Bay Area, the Quantum San Francisco Dojo is currently closed for in-person classes. We are offering online classes via Zoom for our members; if you would like information about joining the Dojo for virtual classes, please contact info@quantumsf.org.

You can also tune in to our social media for updates.

Martial arts, motor skills, and movement play, for ages 3 1/2 – 5 years old.

The Quarks program at Quantum is uniquely designed for our youngest karatekas, pre-K aged students. Classes begin with an obstacle course, include stretching and balance exercises, then target practice and martial arts line drills. All classes end with circle time where the class talks about the tenets of the martial arts: courtesy, integrity, perseverance, self-control, and indomitable spirit.


Monday 4:45 – 5:15 p.m.
 4:00 – 4:30 p.m.
Friday 4:00 – 4:30 p.m.
Saturday 11:15 a.m. – 12:00 p.m.


Classes are currently being held remotely on the online platform Zoom, class links here.

The Quantum San Francisco Dojo is located in the heart of the Mission District, at 2390 Mission Street, 3rd floor. Corner of 20th Street. San Francisco, CA 94110.
Entrance to ground floor from 20th Street, stairs and elevator available, ADA accessible.
Call 415-810-1420 for more info!


As with all Quantum classes, the first week of trial classes is FREE! Quantum is a CA 501c-3 nonprofit, and our price structure is designed to make classes available to all.
Monthly dues: $120 for the first enrolled child, $100 for the second sibling, 3rd sibling is free! Monthly dues include access to unlimited classes.
Yearly membership fee: $80 per family covers all kids and adults training from the same family.
Uniforms: $30–$45


Classes are 45 minutes long, and kids will be engaged in movement play, games, songs, motor skills exercises, and of course martial arts techniques that cultivate body-awareness, balance, and coordination during the crucial early developmental years. The Quantum Dojo has a large, open floor, with a soft cushioned white mat, and is filled with natural light.

Movement play games and martial arts exercises tailored to the unique needs of pre-K students are designed to develop and strengthen the neural connection between mind and body as kids discover where their body is, how to stay safe and recover quickly during playtime, learn right from left, and translate spoken directions into actions in their body. They will also learn soft social skills such as sharing, taking turns, following rules, telling the truth, controlling emotions, taking chances, and trying new things, perseverance, and bravery.

Martial arts classes provide excellent opportunities for kids to learn about boundaries and how to communicate needs to their peers and teachers. Martial arts can be great for shy, quiet, or reserved kids, giving them an opportunity to find their voice and express themselves with power through their bodies. Martial arts can also be a successful tool for kids who are showing signs of aggression or having trouble controlling their emotions through outbursts, tantrums, hitting or attacking parents, siblings, or kids at school, as the structure of the Dojo facilitates creating clear boundaries, and gives kids a safe place to physically express emotions by punching and kicking heavy bags and targets.

Click here to sign up for a free trial Quarks class and orientation at the Quantum Dojo.