Conversion Factor Method (Dimensional Analysis)
Qualitative Descriptions vs. Quantitative
Use exact numbers / “scale factor” UNITS
A Bookkeeping Method: Example
___ ft___in --------> ? m
(1 ft = 12 in; 2.54 cm = 1 in; 100 cm = 1 m)
___ft x 12 in/ft + ___in = ___in
___in x 2.54 cm/in x 1 m/100cm = ___m