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Grand Master Won Kuk Kim standing on the academy mats in his navy dobok and belt
A TRUETH class with young students on the mats

TIME · In Person · Woodinville, WA

Time on the mat, with a master who has given his life to it

Children ages 5 to 17 train with Grand Master Won Kuk Kim and his instructors. They earn every belt, and they earn it in front of the people who love them.

A TRUETH class with young students on the mats

5 to 17

Ages

in groups Master Kim sets by age and stage, from Little Dragons to teens.

Group size

Master Kim keeps groups small, around ten children.

Schedule

The academy's published weekly class times are listed below. Please call to confirm the latest schedule.

Where

The TRUETH academy at 13120 NE 177th Pl in Woodinville, Washington.

Classes

What your child will do

Each class follows the same five parts: an arrival ritual, structured breathing, martial arts movement, a short reflection on feelings, and a closing ritual. Your child always knows what comes next.

Children with a diagnosis and children without one train side by side and work toward the same belts.

Visit the academy

Jungyae Moosul Martial Arts

13120 NE 177th Pl, Woodinville, WA 98072 (Woodcreek Center)

Office hours

  • Mon to Thu 10:00 AM to 7:45 PM
  • Fri 10:00 AM to 7:00 PM
  • Sat and Sun Closed

Times can change by season, so please call to confirm the latest schedule. You can also email us or use the short form.

Weekly class times, as the academy publishes them
ClassDaysTime
Little Dragon (Kids) 4 to 7 yearsMon to Thurs4:30 PM to 5:00 PM
Elite Dragon (Children) 8 to 11 yearsMon to Thurs5:15 PM to 6:00 PM
Teens (Fire Dragon) 12 to 19 yearsTues and Thurs6:15 PM to 7:00 PM
Executive (Adult) 20+ yearsMon and Wed6:15 PM to 7:00 PM
Executive (Adult) 20+ yearsMon to Thurs7:00 PM to 7:45 PM
Executive (Adult) 20+ yearsMon to Fri morningsTime not published, call to confirm
Black Belt SojournerFri5:15 PM to 6:00 PM
Special ExecutiveFri6:15 PM to 7:00 PM

Source: the academy's weekly schedule and its Google listing, read 2026-10-18 15:02 PDT.

Your first visit

No commitment before your child has seen the room

TRUETH explainer: Your first visit

Your first visit starts with a conversation about what helps your child and what does not. A diagnosis is not required to begin. You can use the short form or call. We ask for an age range, without asking for your child's name or medical details on the form. Your child can watch from the side of the mat. Watching is enough for a first visit. The first session is about a safe, predictable room. We talk about cost after you know the class is right. Scholarships come first. Ask us about how classes run before your child starts.

Read the transcript

Your first visit starts with a conversation about what helps your child and what does not. A diagnosis is not required to begin. You can use the short form or call. We ask for an age range, without asking for your child's name or medical details on the form. Your child can watch from the side of the mat. Watching is enough for a first visit. The first session is about a safe, predictable room. We talk about cost after you know the class is right. Scholarships come first. Ask us about how classes run before your child starts.

Photo: TRUETH Foundation

Start with a conversation
  1. Tell us about your child

    Use the short form or call. We ask for an age range and what is hard right now. We never ask for a diagnosis to begin.

  2. Talk with us

    A real conversation of fifteen or twenty minutes about what helps your child and what does not.

  3. Watch a class

    Your child can watch from the side of the mat. Many do on the first visit, and that is enough.

  4. Choose what fits

    We talk about cost after you know the class is right. Scholarships come first.

Ask us anything about how classes run before your child starts.

The belt path

Every belt is earned

The belt system gives children a clear next step and a record of what they have mastered. Each belt asks for new movement, steadier breath and more control.

Master Kim teaches the history, etiquette and principle of a movement before the technique. In his classes, higher-rank students have shown what they understand by writing a storybook, composing a song or designing a game about what they learned.

Belts mark skill, never diagnosis. A child moves at their own pace, and belts are earned in person, on the mat.

A way of life

Martial arts as a way of life

TRUETH teaches martial arts the way they began: as a way of life. Master Kim's rule for any class is that it must educate, motivate and be fun. Miss one and the practice weakens.

We do not compete with other schools or chase tournaments. We keep the art authentic, and we say what we do and do what we say.

The Warrior Ceremony

The Warrior Ceremony

Every cohort ends with the Warrior Ceremony. Grand Master Won Kuk Kim presents each child with their warrior belt in front of their family and community.

Grand Master Won Kuk Kim standing in his dobok and belt

Past and future

A lineage you can trace

Grand Master Won Kuk Kim is the son of Supreme Grandmaster Bok Man Kim, one of the founding originators of Taekwondo in Korea, as TRUETH's mission statement records. Master Kim has practiced martial arts for more than sixty years and has spent more than thirty of them teaching neurodivergent children in Greater Seattle.

He studied ten disciplines, Hapkido, Aikido, Kenpo, Taekwondo, Karate, Thai Boxing, Kung Fu, Judo, Ninjutsu and Gumdo, and treated them like branches of one tree. He followed each branch back to the root they share: breath, movement and the alignment of mind and body. TRUETH Jin Sun Do is that root, written down and taught to children.

Every TRUETH student joins that line. Instructors Master Kim certifies carry it forward, and the children they teach carry it after them.

  • Past: Supreme Grandmaster Bok Man Kim and the founding of Taekwondo.
  • Present: Grand Master Won Kuk Kim and the TRUETH academy in Woodinville.
  • Future: certified TRUETH instructors and chartered TRUETH centers.

A note on names: Grand Master Won Kuk Kim is a different person from Lee Won Kuk, the founder of Chung Do Kwan.

Safety

Safety comes before everything

  • Our safeguarding policy requires background checks and safeguarding training for everyone who teaches children.
  • Our physical contact policy will set out how instructors guide a child's movement, and every enrolling family will receive it.
  • We talk with each family about sensory needs, communication differences and support during class before the first class.
  • Washington law (RCW 26.44.030) makes people who coach or train children mandated reporters of suspected abuse, and we follow it.

Cost

Choose what fits your family

Families choose a tuition level from our published bands. Tuition supports program delivery. We never ask for proof of income.

No child is ever turned away for financial reasons.

Beyond Woodinville

Bring TRUETH to your community

Woodinville is TRUETH's founding academy, where we plan to document and review every program before it travels. Martial arts schools, community centers and clinics that share our standards can apply to charter a TRUETH center.

Start here

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TIME | Martial arts classes for ages 5 to 17 in Woodinville | TRUETH Foundation