G Major uses Scale Form I which invloves one squeeze shift.  With this shift,  your hand will be in Position X with 4 on C (2).

One new note F# is found on (5) at VIII and (3) at XI

Review and visualize the scale:

Now practice:

  • Begin with m,i alternation; when comfortable switch a,m (m,a) alternation.
  • Maintain legato connection. When descending the scale, strive to have your left-hand fingers in a prepared posture, hovering near the frets before they play.
  • When secure, practice the scale while vocalizing the note and watching your hands.
  • Finally, play and say the scale one stroke per note from memory.