The purpose of this study was to produce a butterfly style swimming learning
model for junior high school students. The subjects in this research and development
are students of Middle School. The research method used is the research and
development model of Borg and Gall. Data collection techniques used are the results of
expert validation and effectiveness testing through assessment instruments with t-test
statistical data analysis. The results of research and development of a butterfly style
swimming skill learning model for junior high school students shows that (1) the
butterfly swimming swimming skill learning model for junior high school students
significantly improved the butterfly swimming swimming skill of the students (2) Based
on data analysis, the average value of pre test 9.37 and post test average 17.62,
standard deviation 3.11 value of t -16.77 significance level 0.05 can be said that the
Butterfly Style Swimming Skill Learning Model can improve butterfly style swimming
skills and is effective to be applied in the learning process of butterfly style swimming
skills for junior high school students.
Keywords: Learning Model, Butterfly Style Swimming