Unit Converter Tips for Students
Unit conversions trip up students in physics, chemistry, and everyday life. Here are the tips I wish I had learned earlier for using converters correctly. Unit conversions are where students lose points on problems they otherwise understand. The physics is right, the chemistry is right, the math is right, and the answer is wrong by a factor of one thousand because a milliliter was treated as a liter. I have seen this pattern repeatedly, and the fix is a better process for handling units. An online unit converter handles the arithmetic, but only if you give it the right inputs. Here are the tips I share with students. Write the Units Before the Numbers The most common student mistake is converting the number and losing track of the unit. They write 500 when they meant 500 millimeters, and later treat it as 500 meters. The fix is to always write the unit next to the number, every time, even in scratch work. Five hundred millimeters and five hundred meters are different quantities, and the unit is the only thing distinguishing them. This habit transfers to using a converter. When I enter a value, I confirm the source unit and the target unit before I read the result. More tutorials are on the KitCraft Blog.