Your smartphone can not only serve you as a digital ruler, but it can also help you measure various other things. Smartphones are very powerful tools, especially if you pair them up with good apps. In ...

Every industry uses its own metrics. Fabrics come by the yard, gas is sold by the gallon, office space in New York City is rented by the square foot. As it turns out, however, renting precise amounts ...

Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

Who would have ever thought that the phone tucked away in our back pockets would have high tech cameras, calculators, and internet access? Technology has moved fast, and the world along with it. It’s ...