Anyway, a scale is a succession of notes.
C D E F G A B C is called a C Major Scale.
Each note has a different 'degree'
C - 1
D - 2
E - 3
F - 4
G - 5
A - 6
B - 7
The most important notes in a scale (generally) are the Root, 3rd, and 7th.
If you take a scale, and skip a note in between, you get a CHORD.
Ex. C E G = C major Triad
C E G B = C Major 7
You can build chords using EXTENSIONS but, that's very advanced stuff.
Now, jumping back to the scale.
If you take the Major Scale (CDEFGABC) And flatten the 3rd, 6th, and 7th you get the
C Natural Minor Scale
Therefore, making it C D Eb F G Ab Bb C
If you take the major, and flatten the 3rd, you get
C Melodic Minor Ascending. Melodic Minor changes to Natural Minor when it descends.
C D Eb F G A B
C Bb Ab G F Eb D
C
This is a pretty loose lesson

I'm sorry, but if you have ANY questions, feel free to PM Me, and I'll be glad to help
