LEARNING
THE NOTES ON THE 4TH AND 3RD STRINGS
LEARNING
THE NOTES ON THE 4TH AND 3RD STRINGS by using the octave fingering
shown in figure below left.
With the
6th string as the root, you can identify the notes on the 4th
string: The 3rd finger is playing the same note as the first
finger, only an octave higher.
The same
shape can also be applied to the 5th string to give the location
of notes on the 3rd string as shown in figure below right.

You do
not have to spend time learning the 4th and 3rd strings individually
(although in time this will happen without your realizing
it) as you can use the 6th and 5th strings as the point of
reference for them. All that needs to be done is to learn
the octave shape and your 6th and 5th string notes. You now
have the knowledge to map out 85% of the fretboard!
LEARNING
THE NOTES ON THE 2ND STRING (and checking your knowledge of
the 1st string)
Because
of the way the guitar is tuned (i.e., in imperfect intervals),
we have to use a slightly different shape to play octaves on
the 4th and 2nd strings, as well as the 3rd and 1st strings.

You could
use a different pattern for playing octaves from the 5th string
to the 2nd string, where the 1st finger is playing the octave
to the 3rd finger. This method assumes that you already know
the 5th string notes.

Check
Your Knowledge
Set a slow
metronome and call out any note at random. Play that note on
each string, starting with the 6th and working down, on each
click of the metronome.
If you miss
one note or hit a wrong note, start again until you play all
six locations of that note correctly.
You will
know immediately if you have hit a wrong note because your ear
will be tuned in to the note you started with.
When you
can do this comfortably with any note, speed up the pace a little.
Start off with the easy ones first (A, E, G, etc.) and then
try to use the accidentals with both the sharp and flat names
(Bb, G#, F#, etc.).
Open strings
can be used, as can the notes on the 12th fret, although try
not to rely on them as a solution every time; that would be
too easy.
NOTE: This
is NOT a speed test! Your mind will work more efficiently if
you stick to a moderate tempo and practice this exercise for
no more than 10 minutes.