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Group Activity Answers Activity 1 Answers A. 1) j 2) e 3) h 4) f 5) c 6) d 7) b 8) a 9) i 10) g B. 1) 1700 kg 1,700,000 g. The numerical part of the answer increased. 2) 1.35 mm 0.135 cm. The numerical part of the answer decreased. 3) 0.5 mL 0.005 dL. The numerical part of the answer decreased. 4) 0.98 m 98 cm. The numerical part of the answer increased. 5) 68.22 kL 68,220 L. The numerical part of the answer increased. 6) Answers will vary. Possible answer: When we convert a larger unit to a smaller unit, the numerical part of the answer gets larger. When we convert a smaller unit to a larger unit, the numerical part of the answer gets smaller. When we convert from a larger unit to a smaller unit, we multiply to get our answer. When we convert from a smaller unit to a larger unit, we divide to get our answer. Activity 2 Answers 1) The weight of a computer monitor (6.75 kg is about 15 pounds) 2) Possible answer: The amount of water in a bathtub: 90.96 L 24 gal 3) Possible answer: The length of a basketball court: 28.65 m 95.5 ft 4) Possible answer: The weight of a cell phone: 350 g 12.35 oz 5) Possible answer: The weight of a textbook: 2.8 kg 6.2 lb Compare your answers with the answers of another group. Were your answers similar in length, capacity, and weight? em me Becoming a Math Teacher to Reinforce Your Own Understanding One of the best ways to learn new material is to explain it to another person. Putting ideas into words reinforces your understanding. This is as true for math as it is for any subject. This exercise will help you master mathematical skills by teaching them to someone else. 1. Pick a math skill from this book. It’s best to select a skill that you are relatively comfortable with, but not one you feel you know so well that you don’t need any additional practice. 2. Select an audience. Who would benefi t from learning this mathematical skill? Maybe you have a friend in construction who would be helped by understanding the techniques of measurement conversion. Maybe a family member who likes to cook would fi nd it easier to change serving sizes in recipes if he or she knew more about fractions. 3. Write a brief description of the skill you have chosen, including at least three sample problems. 4. Share what you wrote with the person you selected, and discuss the mathematical skill with him or her. Ask what he or she understands and what is still unclear. Answering the questions will also help you master your topic. After performing this exercise, do you feel more confi dent using the math skill you helped teach? Do you think this process would help you learn other topics? 482 CHAPTER 7 Measurement and Conversion www.mhhe.com/messersmith


messersmith_power_basic_college_1e_ch4_7_10
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