faculty report on caslo evidence

Faculty Report on CASLO Evidence

Program: Auto Tech Course: MATH 190V

CASLO Focus: Critical Thinking Written Communication

Oral Communication Creativity

Information Literacy Quantitative Reasoning

Student sample has been rated:

Exemplary level Minimal level

Your course has been selected for this activity because it requires students to demonstrate exit-level proficiency for the indicated program and CASLO. Please consider the following guidelines as you select appropriate evidence of student learning for this activity:

Select two samples of student work, one that demonstrates exemplary achievement of the CASLO and another that demonstrates achievement at (or near) the minimal level required for the degree. Choose evidence from an “embedded” assignment, project, or exam that normally exists as part of your course.

Review the statements associated with the relevant CASLO standard (see attached) to assure that the evidence correlates adequately with the CASLO. In general, choose evidence which corresponds to at least fifty percent of the outcome statements.

Select evidence produced with an appropriate degree of independence. In general, student work directed by prescriptive advice is not appropriate for this activity.

Please briefly describe your assessment of the evidence; identify qualities in the student work that establish its level of achievement for the CASLO:

Continue on next page.

✔

✔

Please note: Student samples are not currently available for this course. Please see below for description ofhow students generally demonstrate quantitative reasoning through coursework.

2.1 Exams 1-4 all contain a large percentage of the questions requiring accurate and effective calculations.Exemplary students utilize skills with calculators, correct use of formulas and process to consistently completesuccessful problem solving.

2.2 The project in the statistics and propability unit is one example that requires students to representmathematical information by collecting data, calculating median and mode and providing a narrative summaryof bias in their results. Exemplary students convert information into mathematical forms with skill anddemonstrate a good understanding through their narrative summary of the biases to their data and results.

2.3 Exam examples listed (1:#15-17; 2:# 1, 10, 11, 17; 3: #9; 4: #6, 12-14); 5: #3-10) require students tointerpret mathematical information in a variety of forms such as equations, graphs, diagrams and words.Exemplary students are able to interpret mathematical information from a variety of forms (equations, graphs,diagrams, words) with sound inferences, accuracy and provide clear solutions.

Please briefly describe course work designed to prepare this student to demonstrate this CASLO:

2.4 Exam examples listed (1: #9, 10; 2: #15, 3: #11, 4: #14) require students to utilize quantitative dataprovided to draw conclusions based on reasonable analysis. Students who are exemplary skillfully analyzethe data and quantitative data to correctly make decisions.

2.5 Two examples of students supporting an argument or methodology with quantitative evidence can are inexam 1 # 10 & 2 # 15. Exemplary students are effective in using the quantitative evidence in supporting theirargument.

Course content is provided through the text book, and three supplemental content handouts on probability,statistics and basic right triangle trigonometry. The course is delivered in six stand alone units, each withpractice and assigned homework problems and five unit exams. Classes involve content lecture, text problemreview & discussion, individual and group problem solving activities based upon unit practice and assignedproblems. The probability/statistics unit has a project in lieu of an exam where students evaluate datacollected and run simple statistical calculations. Students are given unit exams when they complete a givenunit and have reviewed their assigned homework problems with the instructor

Faculty Report on CASLO Evidence

Program:Auto Tech Course: MATH190V

CASLO Focus: Critical Thinking Written Communication

Oral Communication Creativity

Information Literacy Quantitative Reasoning

Student sample has been rated:

Exemplary level Minimal level

Your course has been selected for this activity because it requires students to demonstrate exit-level proficiency for the indicated program and CASLO. Please consider the following guidelines as you select appropriate evidence of student learning for this activity:

Select two samples of student work, one that demonstrates exemplary achievement of the CASLO and another that demonstrates achievement at (or near) the minimal level required for the degree. Choose evidence from an “embedded” assignment, project, or exam that normally exists as part of your course.

Review the statements associated with the relevant CASLO standard (see attached) to assure that the evidence correlates adequately with the CASLO. In general, choose evidence which corresponds to at least fifty percent of the outcome statements.

Select evidence produced with an appropriate degree of independence. In general, student work directed by prescriptive advice is not appropriate for this activity.

Please briefly describe your assessment of the evidence; identify qualities in the student work that establish its level of achievement for the CASLO:

Continue on next page.

✔

✔

2.1 Exams 1-4 all contain a large percentage of the questions requiring accurate and effective calculations.Minimal students inconsistently use calculator skills typically achieving at least a 70% success in formula useand problem solving.

2.2 The project in the statistics and propability unit is one example that requires students to representmathematical information by collecting data, calculating median and mode and providing a narrative summaryof bias in their results. Minimal students demonstrate converting the information provided into mathematicalforms to convey their understanding through data presentation and narrative with competency. Minimalstudents typically demonstrate reasonable success on the data manipulation but fall short in connecting biasand other aspects of data interpretation.

2.3 Exam examples listed (1:#15-17; 2:# 1, 10,-13, 17; 3: #9; 4: #6, 12-14); 5: #3-10) require students tointerpret mathematical information in a variety of forms such as equations, graphs, diagrams and words.Students are generally able to explain information provided in various forms with a reasonable level ofinference. For example, on Exam 1 #16, a minimal student may successfully calculate the totals for theamount completed yet not connect that to finish finding the difference from the whole is necessary. Or #13Exam 3, minimal students do not read accurately and miss that this is an inverse proportion and thus computeincorrectly.

Please briefly describe course work designed to prepare this student to demonstrate this CASLO:

2.4 Exam examples listed (1: #9, 10; 2: #15, 3: #11, 4: #14) require students to utilize quantitative data todraw conclusions based on reasonable analysis. Minimal students adequately analyze data provided. Forexample, exam 2 # 15 some have successfully completed the necessary calculations but incorrectly correlatetheir numbers with the given tolerance ranges, or make errors in calculations but those errors still happen tofall within the acceptable range thus their acceptance, while correct, is based upon faulty numbers.

2.5 Two examples of students supporting an argument or methodology with quantitative evidence can are inexam 1 # 10 , 2 # 15, 4 # 13. Minimal level students may have errors in calculations or do calculationssuccessfully but fail to successfully associate quantitative data with a correct decision. A commonly observederror is exam 4 #13. Students may successfully complete the unit conversions but miss the fact that the parts

Course content is provided through the text book, and three supplemental content handouts on probability,statistics and basic right triangle trigonometry. The course is delivered in six stand alone units, each withpractice and assigned homework problems and five unit exams. Classes involve content lecture, text problemreview & discussion, individual and group problem solving activities based upon unit practice and assignedproblems. The probability/statistics unit has a project in lieu of an exam where students evaluate datacollected and run simple statistical calculations. Students are given unit exams when they complete a givenunit and have reviewed their assigned homework problems with the instructor

UNIT 1 EXAM, FORM A AUTOMOTIVE

Chapters 1, 2, and 3 Make sure you have pencil paper and your calculator. Do not write on this paper. Show all the work you do that is not done in the calculator. (Partial credit may be available.) Turn in all your answers and any scrap paper with the copy of this exam. Include the correct unit with your answers, where applicable. You will lose points for not including the correct unit. Each problem is worth 5 points unless stated otherwise. For problems 1 – 6, use your calculator to compute the answers.

1. 16.2 + 25.08 + .775 4. 12

725

4

33

2. 6.06 2.8 5. 78

1

32

13

3. 30.008 4.4 6. 2

12

10

3174

7. The cast iron cylinder block of a racing vehicle weighs 162 pounds. If it is replaced with an aluminum block that weighs 83 pounds, how much weight can be saved? 8. A driver wants to replace all four tires and rims on his vehicle. The new tires cost $156 each and the new rims cost $145 each. What will be the total cost to replace the tires and rims? 9. An engine is about to be rebored. The piston diameter measures out at 4.02 inches. The pistons require a 0.0016 clearance between the piston and the cylinder wall. What should be the final finished diameter of the cylinder block bore? 10. The maximum diameter of a brake drum is listed as 11. 086 inches. The brake drum measures 11. 079 inches. After machining 0.08 from the drum to remove score marks, you must determine if the drum is still usable. A) What does the drum now measure? B) Can it be reused? (yes or no)

Auto Exam 1a Page 2 11. A cylinder measure 3.2236 inches at the top and 3.2109 inches at the bottom. How much taper does the cylinder have? 12. Using the formula: Displacement = Area x Stroke x Number of Cylinders, determine the displacement for a V-8 engine with an area of 14.02 square inches and a stroke of 3.66 inches. Round to the nearest tenth of the number. (Rounding is worth 2 points. 7 points total for this problem)

13. Using the formula: CR = olumecombusionv

volumecombustionlacementpistondisp , determine the

compression ratio (CR) if the piston displacement is 742.44 cm 3 and the combustion volume is 75.88. Round to the nearest hundredth. (Rounding is worth 2 points. 7 points total for this problem) 14. Give the decimal equivalent for these drill sizes: a) 7/32 b) 5/16. (Each answer woth 2 ½ points.) 15. An auto technician needs the following lengths of tubing for a job: 8 ¼ in., 7 3/8 in., 6 in., and 5 ½. What is the total length of tubing that she will need? 16. To rebuild an engine, Mark hopes to do about 1/3 of the job the first day, ¼ the second day and ¼ the third day. What fractional part of the job will be left to finish on the fourth day? 17. In an average week, Marvin drives his truck 180 miles. A) If he averages 18 ½ miles a gallon, how many gallons of gas will he use in a year? (52 weeks in a year) (Round to the nearest whole gallon) B) If gas costs $3.969 a gallon, what will be the total gas cost for the year? Round to the nearest dollar (whole). (5 points for part A, 5 points for part B and 1 point for rounding. 11 points total) 18. A tire rotates 5 ¼ turns per second. How many times will it turn in a minute?


Chapters 4, 5, and 6 and trigonometry Make sure you have pencil, paper your calculator and a protractor. We can lend you a protractor if you do not have your own. Do not write on this paper. Show all the work you do that is not done in the calculator. (Partial credit may be available.) Turn in all your answers and any scrap paper with the copy of this exam. Include the correct unit with your answers, where applicable. You will lose points for not including the correct unit. 1. Measure the angle on the right using your protractor. (5 points) 2. Each degree of an angle has how many minutes? (5 points) 3. A circle has a radius of 11 inches. What is its circumference? (5 points)

4. Tire diameter =

+ rim diameter

a) Using the formula above, find the diameter of a P230/70R15 tire. (5 points) b) Use the diameter to determine the tire’s circumference. (3 points) 5. A cylinder has a bore of 4.25 inches and the piston stroke is 3.8 inches. What is the volume displaced by the piston as it goes through its stroke? (5 points) What is the total displacement of the engine if it has 6 cylinders? (2 points) 6. Use your unit change helpsheet to do each of the following problems. Each problem is worth 3 points. Round all answers to the nearest thousandth. Incorrect rounding will count – ½ for each problem.

a) 15 in. = ________ cm c) 90 km/h = ________mph b) 36 psi = _______kPa d) 12 L = _______ pints

7. Using your helpsheet again convert each of the following measurements from either inches to millimeters or from millimeters to inches. Round to the nearest thousandths.(3 points each, - ½ if rounding is incorrect)

a) crankshaft end play, 0.072 mm – 0. 22 mm b) valve lift, 0. 44 in.

8. Add or subtract the following signed numbers. (Each problem worth 4 points)

a) – 322 – 58 b) 13 – – 21 c) 16

1

4

3

9. Simplify the ratio 46:22. (4 points) 10..A differential ring gear has 48 teeth and the drive pinion has 15. Give the final drive- gear ratio using whole numbers and then give the ratio as a number compared to one. (Two answers both worth 4 points) 11. The rear-axle ratio is the ratio of the number of teeth on the ring gear to the number of teeth on the pinion gear. If the rear axle ratio is 3.25:1 and the pinion gear has 16 teeth, how many teeth does the ring gear have? (4 points) 12. The axle ratio is the direct proportion of the engine speed and the drive axle speed. If the axle ratio is 6:1 and the engine speed is 2800 rpms, what is the drive shaft speed? (4 points) 13. When two gears are meashed, the speeds that they turn are inversely proportional to the gears’ number of teeth. If the drive gear has 75 teeth and a speed of 280 rpm, find the speed of a driven gear that has 15 teeth. (4 points) 14. Steven’s was averaging 20 mpg on his truck. After he rebuilt the engine, his fuel mileage increased by 15%. How many miles per gallon is his truck getting now? (4 points) 15. Determine if the angle measurements give a total toe-in within specifications with a tire diameter or 26 inches. Lt toe-in angle = 0.2˚, Rt toe-in angle = 0.6˚ Total toe-in specification range: 0.4 to 0.8 inches. (4 points) 16. Approximate the following: (2 points each)

a. sin 2.5 degrees b. cos 20 degrees c. acute angle with a tan ratio of 1 17. Find the hypotenuse of the right triangle shown. (2 points) ? 3

4


Chapters 9 and 11 Each problem is worth 5 points unless stated otherwise! Use the following engine specifications for problems 1 – 10. Bore………………………………….8.9 cm Stroke………………………………..8.0 cm Deck height………………………….0.882 mm Head gasket thickness……………….1.041 mm Combustion Chamber volume……….50cc Determine the following: 1. Cylinder bore area 2. Cylinder volume 3. What is the total cylinder displacement of the V-6 engine expressed in cubic centimeters? In liters? 4. What is the deck height volume? NOTE: For problems 4, 5, and 6 make sure all units are in centimeters. 5. What is the head gasket volume? 6. What is the total combustion volume of the cylinder? 7. What is the compression ratio of the cylinder if the bottom stroke volume is 48 cu. in. and the top stroke volume is 6 cu. in.? 8. What is the bore to stroke ratio of this engine?

Use the graph above for question 9 (9a- 3 points, 9b- 2 points, 9c –optional 3 points extra credit!). 9a. At what engine speed is peak torque reached? 9b. At what engine speed are both horsepower and torque the same? 9c. What is the horsepower gain between peak torque speed and peak horsepower speed? 10. Determine the missing quantity of amps, volts, or ohms in each part. (each answer 5 points.)

a) What is the voltage on power seats with a current flow of 16A and 0.8 ohms? b) What is the resistance of a starter motor with 250 A operating on 12 V? c) What is the current flow through a clutch operating on 13.5 V with 1.2 ohms

resistance? 11. How many watts can flow through 40 A with a 14 V system? 12. What is the horsepower equivalent of 1600 W?

13. A series circuit has three resistances: 1.2, 0.4, and 0.6 ohms. What is the total circuit resistance? If current flow is 36A, determine the number of watts consumed by the circuit. (each answer worth 5 points) 14. A parallel electrical circuit has 4 paths with resistances of 8, 4, 6 and 8 ohms. What is the total resistance in this circuit? If the circuit is operating on a 12 V battery, what is the current flow? (each answer worth 5 points) 15. Determine the ampere-turn rating of a coil of 400 turns that is passed through a current of 6 amps. 16. If a wire length increases and the current flow (Amps) stays the same, should the wire gauge number increase, decrease, or stay the same? (Choose one out of the 3 answers)


Chapters 12 and 13 Each problem is worth 5 points unless stated otherwise. Please label each answer with the correct units. The unit will count a ½ point credit for each problem. Round all answers to the nearest 100th when rounding is required, unless stated otherwise. 1. If a piston has an area of 120 cm 2 and an oil pressure of 96 N/cm 2 , what force is the piston exerting? 2. How much torque is developed by a force of 40 pounds through a distqance of 3 ½ feet? 3. If a piston has a bore of 2 inches and the oil pressure is 160 pounds per square inch (psi), what force will the piston exert? 4. Determine the total torque multiplication for the entire drive train in first gear if the engine is developing 335 Nm of torque, the first gear has a ratio of 2.6:1 and the drive axle ratio is 4:1. 5. What is the ratio for this gear set? Assume the bottom gear is the drive or input gear. 6. The gear tooth count for the planetary gears are given as Sun gear = 28 teeth Planet gears = 36 teeth Internal gear = 66 teeth

a) Determine the 1st gear ratio. b) Determine the 2nd gear ratio.

7. Find an engine’s rpm if the overall gear ratio is 2.75, the mph = 60 and the rolling radius of the tire is 13 inches. 8. If the oil pressure is 850 kPa, what will be the pressure expressed in N/cm 2 ?

9. What pressure will exert a force of 8500 lb. if the area is 14.1 in. 2 ?


Chapters 12 and 13 10. How many pounds of force are exerted to make a pressure of 10.5 psi if the area is 16.8 in. 2 ? 11. Determine the volume of a 3 ½ X 22 inch cylinder. 12. A driver applies a force of 44 lb on a brake pedal that has a 6:1 ratio. The master cylinder has a 1.2 inch piston diameter and the front brake caliper piston has a diameter of 2.75 inches. Use this information to answer each question below. Each answer is worth 5 points. a) What is the force applied to the master cylinder piston? b) What is the area of the master cylinder piston? c) What is the amount of fluid pressure developed within the master cylinder? d) What is the area of the front brake caliper piston? e) What is the force developed by the front brake caliper piston to apply the brake lining to the disc? 13. List the closest metric line longer than a U.S. customary measurement of 8 inches. The metric lines come in increments of 10 cm. 14. A camber reading is –3/4 degrees and must be changed to a preferred setting of +1/4 degrees.

a) How much must the camber be changed to meet specifications? b) If each shim changes the camber setting 1/8 degrees, how many shims must be

used to bring the camber within specifications? (5 points each answer) 15. Determine the new drive ratio if the original tires were P235/40R17, the new tires are P315/35R17, and the old drive-axle ratio was 3.08. 16. Determine the equivalent indicated speed if the old ties are P315/35R17, the new tires are P235/4OR17 and the true speed wanted is 60 mph. Round off final answer to the nearest whole mile per hour.

Name: ________________________ Class: ___________________ Date: __________ ID: A

1

Unit 5 Exam A

Numeric Response

In the following problems, select the correct meter reading.

1.

2.

In the following problem, use the ruler to determine the length of Letter B in its lowest inch fraction.

3.

Name: ________________________ ID: A

2

The needle on the indicator has made three complete revolutions in a counterclockwise direction plus what is showing on the dial. What is the total measurement this balance dial indicator has made?

4.

In the following problems, 10 micrometers are shown. The size of each micrometer is indicated under it. Determine the correct reading for each and record it in the space provided.

5.

6.

In the following problems, determine the correct reading.

7.

8.

9.

Name: ________________________ ID: A

3

10.

ID: A

1

Unit 5 Exam AAnswer Section

NUMERIC RESPONSE

1. ANS: 12 milliamps of direct current

PTS: 1 DIF: Very Easy REF: Measurement Tools 2. ANS: 18 milliseconds

PTS: 1 DIF: Easy REF: Measurement Tools 3. ANS: 2 3/8 inches long

PTS: 1 DIF: Easy REF: Measurement Tools 4. ANS: 0.0315 inches

PTS: 1 DIF: Moderate REF: Measurement Tools 5. ANS: 1.800 inches


PTS: 1 DIF: Easy REF: Measurement Tools 7. ANS: 5.78 mm

PTS: 1 DIF: Moderate REF: Measurement Tools 8. ANS: 7.54 mm


PTS: 1 DIF: Difficult REF: Measurement Tools 10. ANS: 1 7/8 inches

PTS: 1 DIF: Moderate REF: Measurement Tools

Automobile Mathematics Statistics & Probability

The Statistics and Probability Supplemental Unit shall be started after completing Unit 1. Upon completion of Unit 1, students should begin both Unit 2 and the Statistics/Probability Supplements. Some may wish to move quickly and finish, others pace it. Please refer to your syllabus for the project deadline! These are both available electronically through Laulima in the Resources tool. Point assignments and requirements are slightly different so please note the differences! Like other Unit Modules, there are three parts:

General Homework 5 points Assigned Homework 10 points Project 20 points

General Homework (5 points total)

Statistics: Complete Exercises #1‐29, 32, 34, 35 Probability: Complete Exercises #1‐8, 10, 11

Assigned Problems (2 points each, 10 points total)

Statistics: Complete Exercises # 30, 31, 33, 36 Probability: Complete Exercise # 9

Project: Students are encouraged to work with a partner. Once you decide upon your question, collect your data, do the math, and type it up! All projects should be typed! Choose one of the following questions (or make up a quantitative automotive‐related question of your own) and survey at least 20 people who give you a numeric answer.

How many miles do you drive in a typical week? How many do you typically drive between oil changes? How many gallons of fuel do you typically purchase when filling your gas tank? How much do you spend on a typical fill‐up? How much did you spend to purchase your current vehicle? How much did you spend to maintain your vehicle in the past year?

Calculate the mean and identify the median and mode (after rounding if necessary and if there is one) of your data set. Describe all potential biases in your data. Here’s what you should turn in!

1. Write your question at the top. 2. List your results (your numbers…data!) 3. Do your calculations (show work!) 4. Provide narrative summary of biases

faculty report on caslo evidence

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