For decades, U.S. metrologists have juggled two conflicting measurements for the foot. Henceforth, only one shall rule. This is a foot. This is also a foot. But one foot is a tiny bit shorter than the ...

How many inches are in a foot? Pick inches or feet to measure the length of objects. Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Explore how many inches there are in a foot.

The right and left sides of our bodies are often thought of as mirror images of each other. However, the same does not hold true for the feet. So why are our feet often two different sizes? "Nobody's ...