Beginner students may often use an open string for the 5th note of one-octave scales starting on open strings G, D and A. This can help with tuning.
Another way is to use 4th finger (as you see here) which helps develop the hand frame.
It is good to practice all technical work both with and without vibrato. Practise without vibrato first as you will hear the intonation more clearly.
SEE
Scores - One-Octave Scales & Arpeggios - violin & viola
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