Note: I only wish I had a teacher that gave me homework like this.
My teacher gave me rather weird homework... what does it mean? I am doing it here.
5.11G, 2
5.6G, 2
6.13G, 1
2.16G, 1
3.15G, 1
6.11G, 2
4.12G, 1
5.4G, 1
6.13G, 2
4.4G, 2
7.12G, 2
4.13G, 1
Hint 1:
G stands for something.
Edit/Hint 2:
Added the knowledge tag(should've done this before).
Hint 3:
5.11 is not one number - it's two!
Hint 4:
Based on Hint 3, "." stands for something. What, you ask? Just say its name out loud!