With all scale practice using rest and free strokes
Use different Right hand combinations, for example i,m,i,m then m,i,m,i then m,a,m,a and so on
1. D major Scale
Be aware of the F# and C#.
2. Fingerings
Follow the fingerings as they will make the scale smoother and easier over time.

Rubric for Testing
A = Changes are smooth
All Notes are clear and correct
Correct right and left hand fingering
Excellent right hand technique
B = Changes are a bit slow and sloppy
A couple of wrong notes
Some mistakes in fingerings
Bit sloppy right hand technique (resting fingers on guitar)
C+ = Changes are slow (time between the chords)
Some wrong notes
Mistakes in fingerings
Sloppy right hand technique (resting hand or fingers on the guitar)
C = Very sloppy and slow changes
Many wrong notes
Many mistakes with fingerings
Very sloppy right hand technique
C- = Very slow and broken up changes
Wrong notes everywhere
Mistakes everywhere with fingerings
Extremely sloppy right hand technique
D = Song hardly reconizable