Today in class students began Unit 3 Measuring Circles. We got a new workbook today, and determined that the perimeter of a square is proportional to the diagonal line across the square. The area of the square is NOT proportional to the diagonal of the square. It was good practice to graph measured data and determine proportionality.
Answers to HW: 1. 6.3 cm; the perimeter is 9 (2.8) = 25.2 cm, and 25.2 cm / 4 sides = 6.3 cm 2. B and C 3. Nope. Diego needs to realize that measurements are not always perfect, and the line could still be straight and go through the origin, so it's possibly proportional. 4. a. about 380 gallons b. after about 35 minutes c. about 15 5. a. Tyler ran 2/100 of a mile further b. Tyler had a pace of 8.33333 or 8 1/3 minutes per mile; Elena had a pace of 8.5 minutes per mile (see it in the equation?) c. Tyler ran faster because it took him less time to run 1 mile than Elena.
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October 2018
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