Universal HIghschool MATH patern

Mostly inspired by
http://www.koh-i-noor.cz/shop/sablona-grafu-funkci-703061-kourova?rc=45
It s result of summing all paterns what I have needed in school, but they are pretty expensive and replacing them by paper ones was just for one use mostly so I decided to create this for schools with 3D printers to make for students (It should be printable even on low resolution printers - I am going to test it in my school as soon as possinble), or just for students, or workers who need this.

PLEASE UPLOAD MAKES, and suggestions for making it better and really useful for everyone.

IT HAS GOT: (so far)
ruler in centimeters with Pi
protractor
functions:
- y=x2
- y=2x2
Graphs:
- tanx (Tgx)
- sinx
- sin(2x)
- sin(x/2), or sin(0,5x)