All fretted A’s on the E, A, D strings

Play this tab exactly—

a power chords, major barre chords, and minor barre chords

Are you able to play all A’s confidently and without error? If so, then play the 3 G’s and then the 3 A’s. Do this exercise 20 times every day until you have mastered it.

Once you can perform this exercise 3 times in a row without error (at any speed) then you can move on to the next chapter (B).