1. When measuring length, always: -measure from the 0 line (not the end of the ruler) -measure from the correct ruler side -look at eye level Measurements: (draw the length of each) -millimeter (mm) -centimeter (cm) -inch (in) Linear Measurement 8/22/14

2. Measuring the Length of Objects in the Room ObjectMillimeters (mm) Centimeters (cm) Inches (in) 1. Floor tile 2. H of table 3. Marker 4. W of notebook 5. L of wall bricks 6. H of notebook bin 7. W of chair With your desk partner, measure the length of the following objects to the nearest whole mm, nearest tenth of a cm (1.5), and nearest half or whole in.

3. Barbie Bungee Jump! 8/22/14

4. Bungee Jumping in New Zealand

5. Question: How many centimeters of bungee cord (rubber bands) will it take for Barbie to safely bungee 175 cm, but... still have fun?

6. Planning (Information you need to consider): Planning

7. Prediction: I predict the bungee cord should be ___ cm for Barbie to bungee jump safely. Predict & Design

9. Building: (changes you make to the design) Actual length of our bungee cord: ____ cm Building

10. For each group write 1. length of cord, 2. S or R, and 3. Fun, Lame, or Head Injury. 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - Group Observations

11. Let’s Bungee Jump!

12. Take apart each rubber band in your bungee cord.

13. Reflection: (Answer in complete sentences. Restate questions in your answers) 1. Were you successful? Why or why not? 2. What percentage of the cords were fun, lame, and had head injuires? 3. What are the most important things to consider when designing a (safe & fun) bungee cord?

14. Pie Chart