Math Arguments
Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.
QR Codes
Don't click on random QR codes.
It's just too easy for someone to replace that QR code on that menu in order to send you somewhere much more dangerous than this page.
If you think it couldn't happen to you, why are you here?
If you want a QR code to paste on restaurant menus, 
.
Source:
internet
More Information:
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