This is a sixteenth note. Its value is one quarter of a beat. There are sixteen sixteenth notes in one bar of * time.
Two sixteenth notes joined together.
When sixteenth notes are joined together the tails are replaced by two beams.
Four sixteenth notes joined together.
When counting 16th notes, notice the different sound for each part of the beat - one ee and ah, two ee and ah... etc (written 1 e + a , 2 e + a... etc).
The following study contains sixteenth notes and introduces % time, two beats to each bar.