Car wheel project

Anonymous
timer Asked: May 3rd, 2017

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Car Wheel Project Portfolio Template 1. How do you find the area of a circle? 2. How do you find the circumference of a circle? 3. What information do you need in order to find the area or circumference of a circle? 4. To determine the number of full rotations your tires complete before you need to switch the front and back tires, will you be working with area or circumference? 5. Measure the circumference of the tires of three different vehicles. Vehicles can include cars, bikes, scooters, tractors, etc. Put in the table below. 6. Determine the number of full rotations the tires of each of the vehicles will complete in 10,000 miles. Put in the table below. Type/Brand of Tire Circumference Calculations Example 78.5 inches 10,000 miles = 52,800,000 miles = 633,600,000 inches 633,600,000 ÷78.5 Number of rotations in 10,000 miles 8,071,337.6 7. Choose one of the vehicles and keep track of how far you travel in that vehicle for a week (7 days). Calculate the average daily number of rotations made by the tires. 8. Use your data to predict when you will need to switch the front and back tires (10,000 miles). In other words, using the daily average, how many days will it take for your vehicle to make the number of rotations for 10,000 miles you put in the chart above? Be sure to show your work. Car Wheel Project Portfolio Template For 2 points extra credit each: 1. What would happen to the number of rotations if the circumference of the tires were increased by 20%? 2. What would happen to the number of rotations if the circumference of the tires were decreased by 20%?
Name Date Math Portfolio Rubric UNIT NAME: AREA Portfolio Project: Car Wheel Rotation Project Criteria (Weight) Excellent (4) Good (3) Fair (2) Poor (1) Reasoning and Communication The student provides a clear, logical, and precise explanation of his/her prediction of when the tires will need to be switched. The student provides an adequate explanation of his/her prediction of when the tires will need to be switched. The student provides a partial explanation of his/her prediction of when the tires will need to be switched. The student provides a limited explanation of his/her prediction of when the tires will need to be switched. The portfolio project demonstrates excellent modeling and/or use of tools. Measurements of all tires are exact. The portfolio project demonstrates adequate modeling and/or use of tools. Measurements of all tires are adequate. The portfolio project demonstrates some modeling and/or use of tools. Measurements of all tires are present. The portfolio project demonstrates little or no modeling and/or use of tools. (x1) Modeling and/or Use of Tools (x1) © 2015 Connections Education LLC. All rights reserved. Points Awarded /4 /4 Criteria (Weight) Excellent (4) Good (3) Fair (2) Poor (1) Presentation The portfolio project demonstrates a fully developed understanding of circumference. Calculations are error free. The portfolio project demonstrates an adequate understanding of circumference. Calculations have few errors. The portfolio project demonstrates a basic understanding of circumference. Calculations have many errors. The portfolio project demonstrates an inaccurate understanding of circumference. (x2) Total points: Points Awarded /8 /16 Comments © 2014 Connections Education LLC. All rights reserved. 2

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