1. Measuring Lab I. Problem: What is the measure of various objects?

2. Measuring Lab II. Materials: metric measuring tool, various objects.

3. Measuring Lab III. Procedure: 1. Use only the measuring tool provided, find the measure of the objects in IV Observations. 2. You may not stand on anything or use anyone else’s measuring tool. 3. You and your lab partner must agree on the correct measurement. 4. Write your measurement in the space provided, include the correct unit.

4. Measuring Lab IV. Observations: Copy the Chart on the next slide

5. 1. width of textbook 2. thickness of textbook 3. length of textbook 4. length of desk 5. width of desk 6. length of floor tile 7. diagonal length of floor tile 8. thickness of door 9. length of room (wall to wall) 10. height of room 11. thickness of one sheet of paper 12. area of desktop 13. area of floor tile 14. area of front of textbook 15. volume of textbook

6. Measuring Lab V. Conclusions: 1. How do you find area? 2. What is the unit for area? 3. How do you find volume? 4. There are 2 units for volume, what is the unit for volume in this lab? 5. What is the other unit for volume? Hint: Did you see page 18 of your textbook? 6. What were the 3 easiest objects to measure? 7. Why were they easy to measure?

7. Measuring Lab 8. What were the 3 hardest objects to measure? 9. Why were they hard to measure? 10. Why were some objects easier to measure than others? 11. What is experimental error? 12. Why is there experimental error in the lab? 13. What is a derived unit? 14. Four of the items have derived units. Which ones? Use the number of the object as an answer.

8. Activity # 2 In your journal, use a ruler to draw the following shapes. You will be evaluated on the accuracy of your drawings.

9. 1.) Draw a square whose sides are 5.5 cm long. 2.) Draw a triangle whose sides are all 45 mm long. 3.) Draw a rectangle with a length of 4 cm and a width of 1.5 cm. 4.) Draw a rectangle with a length of 65 mm and a width of 4 cm.

10. Activity # 3: Use the colored paper for this activity. Draw the following rectangles on your paper. Make careful measurements with your ruler. You will be evaluated on your measuring accuracy. Use scissors to cut out each rectangle.

11. Rectangle 1 – 6 cm x 3 cm Rectangle 2 – 7 cm x 4 cm Rectangle 3 – 10 cm x 3 cm Rectangle 4 -- 6 cm x 4 cm

12. 1. The four rectangles you have made are the pieces of a puzzle. The four pieces can be arranged to form 10 cm x 10 cm square. Arrange the pieces in your journal and glue them into place when you have completed the square. You will be evaluated on how precise your square is.

13. Measuring Lab Relevance: Why is it important to make accurate measurements when cutting out your puzzle pieces? How does this relate to a real life situation?