1. Using a Ruler Jessica O’Donnell

2. Ruler Rules First everyone is going to need a ruler. Place the ruler on your desk so that we can talk about the ruler together. Remember your ruler is a tool not a toy so I should not see you playing with it. If you are using a paper ruler please do not bend them.

3. Getting to know your ruler Your ruler has two different sides. This side is measured in inches. The numbers are further apart. This side is measured in centimeters. The numbers are closer together because centimeters are smaller than inches

4. Getting to know your ruler We are going to use the inch side today. Everyone make sure that you have the right side. Check your neighbors while I come around and check.

5. Getting to know your ruler When we start to measure we want to make sure that we start at the first line. We will measure our pencil

6. Getting to know your ruler If we are measuring to the nearest inch That means I want you to tell me the inch that it is closet to Is it closer to the 5 or the 6?

7. Getting to know your ruler If we are measuring to the nearest inch That means I want you to tell me the inch that it is closet to The answer would be 5 inches

8. If we are measuring to the nearest inch ~ How long is this picture of Rudolph? The answer would be 8 inches

9. If we are measuring to the nearest inch ~ How tall is this picture of Santa? The answer would be 12 inches Quick Fact: Did you know that 12 inches = 1 foot So this picture of Santa is actually one foot tall It looks like this ruler is also equal to 1 foot.

10. Getting to know your ruler We can also measure to the ½ inch A half inch comes in the middle of two numbers. It is also the longest line. ½1½ 2½3½ 4½ 5½ We haven’t gotten to an inch yet so this is just ½ inch

11. Let’s Measure to the ½ inch We can also measure to the ½ inch 2½ The answer would be: 2 ½ inches

12. How tall is this Christmas tree picture? measure to the ½ inch The answer would be: 4 ½ inches 4½

13. How tall is this present picture? measure to the ½ inch The answer would be: 1 ½ inches 1½