The following is a set of scales that uses the octave pattern of the fingers. These two scales can be studied extensively with slur patterns of 2, 3, 4, 6, 8, 12, 16, & 24, including bowing variations. After a degree of mastery is achieved with the scale, arpeggios can be added.

G Major uses open to start, then first finger to begin each subsequent octave.

E               1 2 3 4

A        1 2 3 -1 2 3 4

D 0 1 2 -1 2 3 4

G 0 1 2 3

A Major uses 1 for the beginning of each octave.

E               1 2 3 4

A        1 2 3 -1 2 3 4

D 1 2 3 -1 2 3 4

G 1 2 3 4
 

After extensive study of these two scales (and arpeggios) you may introduce Flesch or the Barber Barber scale books.