1. oneone CS-3A Objective: To identify the basic metric units and their related prefixes in order to estimate metric lengths, masses, and volumes. CSI Note: Why is the metric system better than the customary system for measurement? Drill: 1. Get a lesson ditto from the set. 2. Complete the Drill in your Drill Book.

2. oneone CS-3A 1.About how long is your pencil? 2.About how heavy is your chair? 3. About how much liquid can you hold in your hand?

3. oneone CS-3A SCIENTISTS PREFER TO USE THE METRIC SYSTEM FOR MEASUREMENT RATHER THAN THE CUSTOMARY SYSTEM. Let’s find out why. 1. BRAIN POP: METRIC SYSTEM Take Notes

4. oneone CS-3A 2. BASIC UNITS: Write the basic metric unit for each type of measurement length/distance – meter (m) mass - gram (g) volume - liter (L)

5. oneone CS-3A METRIC PREFIXES: Write the meaning for each metric prefix. deci- (d-) one tenth centi- (c-) one hundredth milli- (m-) one thousandth deka-/deca- (da-) ten hecto- (h-) one hundred kilo- (k-) one thousand

6. oneone CS-3A Extra Credit: Find the metric prefixes for: 1 million1 millionth 1 billion1 billionth 1 trillion1 trillionth

7. oneone CS-3A Homework: Give 3 reasons why scientists prefer to use the metric system.