Fourth Grader Discovers New Way to Multiply by 6!

A great math breakthrough: fourth grader Baelee has uncovered an easier way to multiply large integers by six; check out this video!

Baelee made the discovery on her own while doing homework for her fourth grade math class, taught by Austin Applegate. Although Baelee’s assignment was simply to fill in a multiplication grid, her explorations of patterns during class activities—using manipulatives and number games—prepped her well to notice yet a new pattern....  

When Baelee revealed her innovative approach to Austin, he had her present her findings to fellow fourth graders and colleagues. Baelee’s classmates and several Calhoun math teachers tested the method with a variety of integers, and were amazed that it works every time! 

One of the teachers wowed was Michael Vercillo, who was doing his PEL teaching fellowship in Calhoun's Lower School when the fourth grader first revealed her discovery. In a blog describing Baelee's method, Michael writes, "This is the sort of curious, creative, exploratory mindset that Calhoun and other progressive schools are aiming to foster and encourage in their students.” 

Austin agrees, noting that Baelee's discovery is a also a great example of creating new knowledge. “It’s about inventing a new way of looking at multiplication," enthuses Austin. ”And it issuch a simple, elegant trick that it makes you say, ‘What a great idea; why didn't I think of that?’"