1. Rate- ratio of two quantities that have different units
2. Ratio- comparison of two quantities by division
3. Unit Rate- Rate in which the second quantity is one unit (You always divide!) Ex. 250 miles in 5 hours. How many miles per hour? 50 miles per hour
4. Equivalent ratios- ratios that name the same comparison
5. Conversion factor- is a rate that compares two equivalent measurements
6. Scale- it describes how the dimensions in the actual object compare to the dimensions in the drawing.
7.Proportion- is a statement that two ratios or rates are equivalent.
8. Term- One of the quantities composing a ratio or fraction or forming a series.
9. Scale drawing- a drawing of a real object that is proportionally smaller or larger than the real object.
