The dining room table was littered with crumpled papers, a half-empty mug of lukewarm coffee, and a third-grade math worksheet that might as well have been written in ancient hieroglyphics.

Leo stared at the problem for what felt like the hundredth time: If a train leaves Station A at 4:00 PM traveling at 45 miles per hour…

“I don’t get it,” Leo muttered, dropping his pencil with a dull clatter. “It doesn’t make any sense, Dad.”