
Ahn Chang-Ho

Chang-ho's son Philip Ahn as Master Kan in the television series Kung Fu
Do-San is an ITF-style teul (form). It has 24 movements and is diagrammed as a capital A.
Ahn Chang-ho (November 9, 1878 - March 10, 1938) was a Korean independence activist and one of the early leaders of the Korean-American immigrant community in the United States. He is also referred to as his pen name Dosan (도산; 島山 [tosʰan]). He established the Shinminhoe (New Korea Society) when he returned to Korea from the US in 1907. It was the most important organization to fight the Japanese occupation of Korea. He established the Young Korean Academy (흥사단; 興士團) in San Francisco in 1913 and was a key member in the founding of the Provisional Government of the Republic of Korea in Shanghai in 1919. Ahn is one of two men believed to have written the lyrics of the Aegukga, the South Korean national anthem. Besides his work for the Independence Movement, Dosan wanted to reform the Korean people's character and the entire social system of Korea. Educational reform and modernizing schools were two key efforts of Dosan.
Ahn was also the father of Hollywood actor Philip Ahn, well-known for his portrayal as Master Kan in the David Carradine television series Kung Fu.
Videos[]
ITF Taekwon-do forms often come in two styles: Sine Wave and non-Sine Wave. In either case, the basic movements are the same. The difference is in the "up and down" motion that's used (or not), the rhythm of the movements, and the breathing. See main article Sine Wave for additional details.
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Diagram[]
To print the diagram, click on the image and select "See full size image," or right-click and open the image in a new tab.
Written Instructions[]

The lines of Do-San (student view)
Here on this wiki, the wording used to describe this form deviates from the conventional wording historically used to describe the form. This was done to facilitate wiki-style links to the names of associated techniques. To view the conventional wording, see ITF Forms Summary Description.
- Ready Posture: Parallel Ready Stance
- 1. Step the left foot toward B, forming a Left Walking Stance facing B. Left High Outer Forearm Side Block to B.
- 2. Execute a Right Middle Punch to B, while maintaining a Left Walking Stance facing B.
- 3. Move the left foot on line AB, and then turn clockwise to form a Right Walking Stance facing A. Right High Outer Forearm Side Block to A.
- 4. Execute a Left Middle Punch to A, while maintaining a Right Walking Stance facing A.
- 5. Step the left foot toward D, forming a Right L-Stance (i.e., left foot forward) facing D. Middle Knifehand Guarding Block to D.
- 6. Step the right foot toward D into a Right Walking Stance facing D. Right Middle Straight Fingertip Thrust to D.
- 7. Twist the right knifehand together with the body counterclockwise until its palm faces downward and then step the left foot toward D, turning counterclockwise to form a Left Walking Stance facing D. Left High Backfist Side Strike to D.
- 8. Step the right foot toward D into a Right Walking Stance facing D. Right High Backfist Side Strike to D.
- 9. Step the left foot toward E, turning counterclockwise to form a Left Walking Stance facing E. Left High Outer Forearm Side Block to E.
- 10. Execute a Right Middle Punch to E, while maintaining a Left Walking Stance facing E.
- 11. Move the left foot on line EF, and then turn clockwise to form a Right Walking Stance facing F. Right High Outer Forearm Side Block to F.
- 12. Execute a Left Middle Punch to F, while maintaining a Right Walking Stance facing F.
- 13. Step the left foot toward CE into a Left Walking Stance facing CE. High Outer Forearm Wedging Block to CE.
- 14. Execute a middle Right Front Snap Kick to CE, keeping the position of the hands as they were in 13.
- Perform 15 and 16 in a fast motion:
- 15. Lower the right foot to CE into a Right Walking Stance facing CE. Right Middle Punch to CE.
- 16. Execute a Left Middle Punch to CE, while maintaining a Right Walking Stance facing CE.
- 17. Step the right foot toward CF into a Right Walking Stance facing CF. High Outer Forearm Wedging Block to CF.
- 18. Execute a middle Left Front Snap Kick to CF, keeping the position of the hands as they were in 17.
- Perform 19 and 20 in a fast motion:
- 19. Lower the left foot to CF into a Left Walking Stance facing CF. Left Middle Punch to CF.
- 20. Execute a Left Middle Punch to CF, while maintaining a Left Walking Stance facing CF.
- 21. Step the left foot toward C into a Left Walking Stance facing C. Left Rising Block.
- 22. Step the right foot toward C into a Right Walking Stance facing C. Right Rising Block.
- 23. Step the left foot toward B, turning counterclockwise to form a Sitting Stance facing D. Left Middle Knifehand Side Strike to B.
- 24. Bring the left foot to the right foot and then Step the right foot toward A into a Sitting Stance facing D. Right Middle Knifehand Side Strike to A.
- End: Bring the foot back to the ready position.
ITF Color-Belt Forms[]
The other forms in the ITF-series of Color Belt forms are:
- 10th gup - no form, just basic exercises: Four Direction Punch and Block
- 9th gup - Chon-Ji (19 movements)
- 8th gup - Dan-Gun (21 movements)
- 7th gup - Do-San (24 movements)
- 6th gup - Won-Hyo (28 movements)
- 5th gup - Yul-Gok (38 movements)
- 4th gup - Joong-Gun (32 movements)
- 3rd gup - Toi-Gye (37 movements)
- 2nd gup - Hwa-Rang (29 movements)
- Basic exercise at 2nd gup: Four Direction Thrust
- 1st gup - Choong-Moo (30 movements)
References[]
The primary reference is:
The following websites are also particularly good online references for ITF-style taekwondo: