A new viral trend has taken social media by storm, and now it’s creeping into classrooms across Australia. It’s called the “six seven” trend. While the name suggests numbers, there’s no math involved.

“Because we do so much multi-step problem solving, and we’re doing two-step word problems, if they’re spending 10-15 minutes trying to figure out what 9x7 is, they’re doing a lot of extra work, or ...