I consider myself pretty conversant in metric units. I know that 20 kilograms is 44 pounds (double it and add 10%) and that five kilometers is a little over three miles (I’ve, uh, run a lot of 5Ks).

Students often struggle with temperature conversions in science courses due to time constraints. A simplified approximation method offers a solution by using basic arithmetic: double Celsius and add ...

Hot and cold are measured using a numeric scale called temperature. Temperature scales are how we communicate about the weather, measure safety and comfort and explain the physical world. Using ...