The "chinrest" is really a "jawrest."
This terminology can confuse young violinists and their parents in the beginning. It is useful to point out this discrepancy so that the violin posture is not inadvertently misinterpreted during home practice.
For a young violinist having difficulty integrating the words "down" and "up" into their playing consider substituting with the words "open" for down bows and "close" for up bows. Since the bow moves in lateral directions left and right the actual words "up" and "down" do not correlate with the motions and can be confusing to a young violinist and their parents during home practice.
Words like "high" and "low" can be confusing to a young student while they are in the process of playing the violin. Consider altering your instruction to be a description location like "closer to the bridge (or nose)" and "closer to the scroll" instead for more efficient results in the initial stages of learning these distinctions.
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