1. Big Idea Measurement: Some attributes of objects are measurable and can be quantified using unit amounts. Essential Question How does the size of the measuring tool affect the measurement. 11-2

2. Step 2: Measure the height of your desk with cubes. Step 1: Estimate the height of your desk using paper clips and cubes. Step 3: Measure the height of your desk with paper clips. How does the size of the measuring tool affect the measurement? 11-2 Step 4: Did you need more paper clips or connecting cubes when measuring the height of your desk? Why?

3. Big Idea Measurement: Some attributes of objects are measurable and can be quantified using unit amounts. Essential Question How are standard units, such as inches, used to measure length? 11-3

4. Step 1: Find 3 objects that are about 12 inches long? Step 3: Draw a 3 inch line. Draw a 5 inch line. Step 4: Tell how you use a ruler to measure length in inches. Where do you start? Step 2: Measure the width of your desk using inches. How are standard units, such as inches, used to measure length? 11-3

5. Big Idea Estimation: Measurement can be approximated using known referents as the unit in the measurement process. Essential Question How do you estimate the length of an object and then measure it to the nearest inch? 11-5

6. Step 1: Is 4 inches a good estimate for the length of a pencil box? Step 3: Estimate the length of your hand from your longest finger to your wrist. Use a ruler to measure the length to the nearest inch. Step 4: Why is estimation important? How could you use estimation in real life? Step 2: Estimate the length of your shoe using inches. Then measure your shoe to the nearest inch. How do you estimate the length of an object and then measure it to the nearest inch? 11-5