<![CDATA[This research aims to find out the extent of the effectiveness of audio-visual media to improve the ability of the back roll movement in the class X floor exercise at SMK Industri Mandiri Karawang. This research method uses quantitative research and research techniques, namely quasi-elkspelrimeln with nonelquivalelnt control group design and sampling techniques using clustelr random sampling. The samples used were X motorcycle business engineering as the experimental class and X industrial electronics engineering as the control class. The population in this study was the entire X class of 152 students. Data collection using SPPS application. Based on the results of the mann-whitnely test value with the "telst statistics" output, it is known that the Asymp .Sig (2-taileld) value is 0.001 <0.05, it can be concluded that Ho is accepted. It has been found that the N-Gain scorel test value is 0.5672 < 0.7, which is included in the moderate category. Then the prelselntasel N-Gain test, the value of selbelsar 56.7193 or selbelsar 56% was found which is included in the moderately effective category. the conclusion that there is an effectiveness of audio-visual meldia to improve the back roll movement on the floor cell learning in class X SMK Industri Mandiri Karawang.]]>
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