3~5 years old kids do not have enough muscle to hold their instrument well. Before using the real violin, the kids will learn how to hold the violin and bow, rest position, play position, and how to play the rhythm with the box violin.
You can see all other class material videos here :
https://nystringacademy.com/bbs/board.php?bo_table=HTP_TV_Violin&sca=Class+Material
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