You may have heard kids say "six, seven". We unpack what's behind the latest slang making waves in playgrounds and online.

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” ...

Prepares students for Precalculus and other higher math courses requiring intermediate algebra. Topics include: linear equations and inequalities, absolute value equations and inequalities, systems of ...

“The only way to close achievement gaps is to slow down the fast learners.” Compared to other disciplines, mathematics has a much smaller number of concepts to learn. As a result, the students with ...