About problem in this research is problem up to learning process jumpstyled tall bolster belly amongst those teacher in processes learning to utilizecommando method that insufficiently gets menstimulus student. To the effect thisresearch is subject to be increasing ability jumps styled tall straddle by modifiesstring tool. This observational form is Observational action braze (classroomaction research) with subject that total 16 students consisting of 7 male studentsand 9 female students. learned yielding step-up high jump stradel\u27s style that justfine, which is on i. cycle with average value 73. 59 , so step-up it as big as 14,44%. whereas average values on cycle II. is 80. 31 , so step-up it as big as 24,89 %.What one that did by teacher in increase to high Jump stradel\u27s style was plottedwith every consideration so can make active student because supported by markssense motivation in do rubber string tool modification