Landmarks on the Staff
To find your way around the staff, you will need to develop landmarks which your eyes can use to quickly recognize a note.
Middle C is easy to see, so use that landmark to become familiar with the D and B on either side of middle C. I tell my students, "D and B are middle C's buddies."
The top line of the bass staff is A. Recognition of A, B, C in the middle of the grand staff is very helpful.
The lowest space bar of the bass cleff is also an A.
This A can be a starting point for naming the notes of the bass clef.
Say,"E, F, G, A"
How to Read Music
Often students use words to help them remember the letter names, such as: FACE, and ACE.
Try writing notes to develop reflexive note recognition. For example, draw all the notes on the staff, from lowest to highest, and then name them all.
If trying to determine the letter name of a note you do not recognize, just start with the letter name of a note you know and name the lines and spaces up to the note in question.
(I recommend naming up to a note because naming down would mean saying the alphabet backwards.)
Read Music Method teaches children to read notes on the staff on the first day of lessons. Students quickly gain a deep comprehension of the musical staff on which to build their skills.