1. September 16, 2010 IOT POLY ENGINEERING I1-10 DRILL: (Assessing technology) With 1 partner, make lists of pros and cons regarding the use of mp3 players in public. PROSCONS 1. 2. 3. 4. 5. 1. 2. 3. 4. 5.

2. IOT POLY ENGINEERING I1-9 Impacts of Technology 5 Main Areas Impacted by Technology: –Social : How does it affect interdependent human relationships? –Cultural : How does it affect the characteristic features of everyday existence? –Economic : How does it affect the production, distribution, and consumption of goods and services? –Political : How does it affect the government? –Environmental : How does it affect both the human and natural environments? (aesthetics included here)

3. IOT POLY ENGINEERING I1-9

4. PROBLEM LOVING OLVING S

5. IOT POLY ENGINEERING I1-10 Problem solving is an activity performed routinely by scientists and engineers. Problem solving can be seen as a process:

6. IOT POLY ENGINEERING I1-10 Another view of the problem solving process:

7. IOT POLY ENGINEERING I1-10 … from a 1947 arithmetic book …

8. IOT POLY ENGINEERING I1-10 Sometimes we have a humorous opinion of problem solving …..

9. IOT POLY ENGINEERING I1-10 Sometimes we have a humorous opinion of problem solving …..

10. IOT POLY ENGINEERING I1-10 PROBLEM #1 : A man has a chicken, a fox, and some chicken feed. He wants to take all of them across a river, but his boat isn’t large enough. He can transport himself and only one other item during each crossing of the river. He can’t leave the chicken alone with the fox for the fox will eat the chicken. He can’t leave the chicken alone with the chicken feed for the chicken will eat the feed. How can the man get all three things to the other side of the river? Write down your answer.

11. IOT POLY ENGINEERING I1-10 PROBLEM #1 DIAGRAM SOLUTION: 1. Chicken crosses the river. 2. Boat returns to the other side. 3. Chicken feed crosses the river. 4. Chicken and boat returns to the other side. 5. Fox crosses the river. 6. Boat returns to the other side. 7. Chicken crosses the river.

12. IOT POLY ENGINEERING I1-10 PROBLEM #2 : A man lived one-fourth of his life as a boy in Baltimore, one-fifth of his life as a young man in Youngstown, one-third of his life as a man in Manitoba, and the last thirteen years of his life in Thurmont. How old was the man when he died? Write down your answer.

13. X = X/4 + X/5 + X/3 + 13 60X = 15X + 12X + 20X + 780 60X = 47X + 780 13X = 780 X = 60 years IOT POLY ENGINEERING I1-10 PROBLEM #2 ALGEBRAIC SOLUTION: Define the unknowns: X = man’s total age. X/4 = years as a boy X/5 = years as a youth X/3 = years as a man Write an equation: Solve the equation:

14. IOT POLY ENGINEERING I1-10 PROBLEM #3 : Given a stack of individual blocks as shown. How many more blocks are needed to fill the empty spaces and form a large cube? Write down your answer.

15. IOT POLY ENGINEERING I1-10 PROBLEM #3 MODEL SOLUTION: 8 blocks on level three 6 blocks on level two 9 blocks on level four 23 blocks were missing

16. IOT POLY ENGINEERING I1-10 PROBLEM #4 : HOMEWORK Given a stack of individual blocks as shown. If all of the visible blocks were to disappear suddenly, how many blocks would remain? Write down your answer.

17. IOT POLY ENGINEERING I1-10 PROBLEM #5 : HOMEWORK Draw the following figure in one continuous action without lifting your pencil off the paper and without crossing any lines. You may begin at any point.

18. September 16, 2010 IOT POLY ENGINEERING I1-10 HOMEWORK: (Problem Solving) 1.Complete any problems from today’s lesson that you didn’t already finish. 2.Answer problems # 4 - 5 on the printed sheet.