I own a digital 24-hour clock (i.e., a military time clock) that displays in HH:MM format. Each digit uses the standard seven-segment display in which seven lights toggle on or off to form numbers, as ...

We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple third-grade math problem manages to trip us up and make us question our ...

Barnyard animals teach a chicken how to read analog clocks in this instructional picture book. After Chicken shows up late to meet with Farmer Ed, a letter arrives from “Brutus the Boxer,” promising ...