Anyone who's been around kids has heard it. Some classrooms nationwide have banned it. Richmond-area teachers have gone viral ...
A San Diego middle school math teacher is fully embracing the viral "6-7" phenomenon, making 6-7 callouts part of her lessons ...
The online dictionary announced on Oct. 29 that its Word of the Year is "6-7" (also "six-seven" and "67"), a slang phrase ...
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