1. Objective: To use the U.S. system of measurement To do conversions within the system. 3.12.1 Class Notes Measurement Sec 1.4 1.Review: A presidential poll has Obama’s approval rating at 37% with a margin of error of + 3%. How high and how low is Obama’s actual approval rating? 2. Review: How many cg are in 3.82 kg?

2. 3. The gallon conversion graphic Q Q Q Q P P P P P P P P 4. Example: How many quarts are in 2 ½ gallons?

3. 5. Memorize: Complete each conversion factor. a. 1 mile = ____________ feet b. 3 feet = _________ yard c. 1 pound = __________ oz. d. 1 ton = ________ lbs f. 1 foot = ________ inches 6. Example: How many feet are 15 yards? 7. Example: Four ounces equal how many pounds?

4. 8. Example: John drives on the interstate at 60 miles Per hour. How long will it take him to drive 330 miles? 9. Example: Karen is a cashier at a grocery store. She can Scan 20 items in a minute. How many items can she Scan in 15 seconds?