One of the challenges I have as a drummer learning how to play piano and sing, is that I do not have the scales firmly rooted in my brain.
This article explains the main features of scales and provides some exercises to help learn pitch, scales, intervals, and the root major chord.
A major scale consists of seven notes with intervals of whole steps (two keys on a piano keyboard) and half steps (semitones) in the following pattern:
whole whole half whole whole whole half
We will simply call the notes in the scale 1 2 3 4 5 6 7, with the octave being 8.
The recording below runs through the following pattern:
C Major:play C Major
There is more about key signatures (and everything) at http://en.wikipedia.org/wiki/Key_signature