## BIG IDEA - Knowledge of SI unit [[Prefixes|prefixes]]. Use the fence method (chain link method). It is the fastest way to link conversion factors to quickly convert a measurement from one unit of measure to another. - Always lead with the units and not the numbers. - The fence method (chain link method) is the fastest way to “link conversion factors” to quickly convert a measurement from one unit of measure to another. - The units across the top are the route taken to convert from one prefix or unit to the next. - The bottom unit is diagonal. This allows you to cancel the unit. - example, look at years and you will see years is the bottom diagonal to give years / years or 1 ![[Chain Link Method Example.png]] --- Return [[Home|Home]] | [[SI units]] | [[Physical constant|Physical constants]] | [[Base Units]]