A viral trend has teachers scared to tell students to turn to page 67 in their textbooks. The trend "6-7" became popular from rapper Skrilla's song "Doot Doot" where he repeated the lyric "6-7" and ...

For teachers, the numbers six and seven have suddenly taken on a new—and dreaded—significance this school year. From French class to gym class, students are frequently saying (or shouting) “six-seven” ...