September 24, 2009 IOT POLY ENGINEERING I1-17

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September 24, 2009 IOT POLY ENGINEERING I1-17 DRILL A: Army Ants – A group of ants from separate colonies meet head-on in a very narrow underground tunnel. There is a small space at the edge of the tunnel, but it can only hold one ant. How can the ants pass each other? Small space DRILL B: Orange & Blue Of 100 Poly students participating in a telephone survey, 75 said they were wearing orange, 95 said they were wearing blue, and 50 said they were wearing both blue and orange. Was the survey accurate? (Is this possible?)

DRILL A: ARMY ANTS – SOLUTION IOT POLY ENGINEERING I1-17 DRILL A: ARMY ANTS – SOLUTION A group of ants from separate colonies meet head-on in a very narrow underground tunnel. There is a small space at the edge of the tunnel, but it can only hold one ant. How can the ants pass each other?

95 45 75 25 50 DRILL B: Orange & Blue – Diagram Solution IOT POLY ENGINEERING I1-17 DRILL B: Orange & Blue – Diagram Solution 100 Poly students: 75 said they were wearing orange, 95 said they were wearing blue, and 50 said they were wearing both blue and orange. 95 45 75 25 50 45 + 50 + 25 = 120 students, not 100, so there is something wrong with the survey.

CLASSWORK PROBLEM #1 : Cutting The Rug IOT POLY ENGINEERING I1-17 CLASSWORK PROBLEM #1 : Cutting The Rug A rug was purchased to fit into a hallway 2 feet wide by 18 feet long. The rug company goofed and delivered a rug 3 feet wide and 12 feet long. Show how the rug can be cut into two sections and taped back together to form the desired dimensions. Write down your answer.

CLASSWORK PROBLEM #1 : Cutting The Rug Solution IOT POLY ENGINEERING I1-17 CLASSWORK PROBLEM #1 : Cutting The Rug Solution

CLASSWORK PROBLEM #2 : Plus Sign IOT POLY ENGINEERING I1-17 CLASSWORK PROBLEM #2 : Plus Sign Show how the following shapes can be assembled to form a “plus” sign (+). Write down your answer.

PROBLEM #1 : Plus Sign Solution IOT POLY ENGINEERING I1-17 PROBLEM #1 : Plus Sign Solution

September 24, 2009 HOMEWORK: (Problem Solving) IOT POLY ENGINEERING I1-17 HOMEWORK: (Problem Solving) Complete any problems from today’s lesson that you didn’t already finish. Continue to work on the solution to both Spider & Fly problems from the printed sheet.