Last year, my seventh-grade class created at-scale drawings of cost-efficient cabins for an outdoor education camp. Using three-dimensional figures and proportional reasoning, my students designed and ...

Let’s be honest—Excel can feel like a double-edged sword. On one hand, it’s an incredibly powerful tool for organizing data, crunching numbers, and making sense of the chaos. On the other, mastering ...

I recently saw a coworker type out a SUM formula in Excel to get a quick total, only to delete it a second later. When I showed him a pro shortcut hidden in plain sight, he realized he'd been wasting ...