These are the four direction kicking much like Sa Ju Jirugi or Sa Ju Makgi - these Sa Ju Chagi exercises are to work the basics. GM Park always spoke of how little kicking techniques are taught in patterns training until the higher ranks so he wished these exercises to be taught as well to compliment patterns practice. (also from my notes)

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I found some of my old notes recently and in them are a variety of GTF TaeKwon-Do requirement guidelines as set out by the late Grand Master Park Jung Tae.

GM Park Jung Tae's 1-Step Sparring

Losing One’s Temper Brings On Problems ……..

There was a boy with a bad temper. His father gave him a bag of nails and told him that every time he lost his temper, to hammer a nail in the back fence. The first day the boy had driven 37 nails into the

fence. Then it gradually dwindled down. He discovered it was easier to

hold his temper then to drive those nails…