Mambo and I posted at the same time. His chart showing both the treble and bass clef is a little better.
Go here; http://www.studybass.com/lessons/rea...etboard-notes/
Then click on Bass Clef Notes on the Fretboard - pdf
Copy that and print it out.
Notice you have three octaves shown. This roughly relates to ledger notes below the staff for one octave, then notes within the staff for the second octave and then ledger notes above the staff for the 3rd octave. Notice where middle C is located - first ledger note above the staff.
Just recognizing it's a C note is not enough, It's a C note located where.
Ledger notes below the staff.
Ledger notes in the staff.
Ledger notes above the staff.
Yes that was a step I had not anticipated.