Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Maths On Track: Assessment Task Name: Date of Task: Duration of Task: from 5 x 50 minute periods of class time Time allocated: (250 minutes) in class under examination conditions. Instructions This SAC (school assessed coursework) is a problem solving task in which you are required to make practical application of the theory, primarily from the rates of change area of study, although some theory from other areas of study may be required. You must answer all questions. You should use your graphics calculator and you must clearly indicate how that technology was used. Evidence for this maybe provided either in written form (screen dumps for example), or through verbal communication with your teacher who can observe your appropriate use of technology. It is your responsibility to provide clear evidence of appropriate use of technology. You may take into the SAC: 1) Your text book, 2) your summary book, 3) your graphics calculator. Marks will not be given for the answers alone. In some cases you will need to discuss the results you get, explaining both your reasoning and your working out. This questions section of this paper has been printed single sided to give you extra working space for each question (if needed). Preparation for this SAC On the following pages you have been provided with maps of the Australian Grand Prix Albert Park circuit. Each of these maps provides you with different information about the circuit, including layout and scale. You will need to refer to this information to answer the questions in this SAC. Before the SAC it will be useful for you to: 1. Identifying the relative speeds of each turn (which is slowest, fastest etc.) 2. Calculate the approximate distances between turns using the scale given on the second map. 3. Use the following background information and maps to familiarise yourself with the Grand Prix Circuit. Complete all questions. Show all working out. Describe your use of technology Page 1 Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Background Information Below is the layout of the Australian Grand Prix, Albert Park Circuit. The track consists of 16 turns of varying difficulty for the driver. There are also straight stretches along which very high speeds can be attained. The circuit is 5303 metres in length. The Lap Record is held by Michael Schumacher who, in 2004 completed one lap in 1:24.125 (1 minute 24.125 seconds) in his Ferrari, with a top speed of 325 km hr (http://www.formula1.com/races/in_detail/australia_787/). The Grand Prix runs for 58 laps totalling 307.574 km. (Image Source: http://en.wikipedia.org/wiki/Image:Circuit_Albert_Park.svg) Copyright statement from image page: “I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.”) Web Resources: http://www.grandprix.com.au/ (Excellent map with a scale can be found on this site) http://www.f1-fansite.com/circuits/albert-park.asp http://www.f1corporate.com/content/f1-race-tracks Complete all questions. Show all working out. Describe your use of technology Page 2 Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task http://www.formula1.com/races/in_detail/australia_787/ http://www.f1complete.com/index.php?option=content&task=view&id=7858 Complete all questions. Show all working out. Describe your use of technology Page 3 Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Name: Task Questions 1. a) What is the average speed around the Australian Grand Prix track for one lap (not the first or last lap)? b) Rate turns 1 to 16 from fastest to slowest. Justify your ordering. c) What is the fastest section of the track? Why? Estimate the average speed of this section. d) What is the slowest section of the track? Why? Estimate the average speed of this section. Complete all questions. Show all working out. Describe your use of technology Page 4 Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. 2. a) Following a series of speed trials, the following speed-time graph was generated representing one lap of the track. Mark on the graph the turns represented. b) Construct you own speed (in km/hr) – time (in seconds) graph for the track assuming constant acceleration between the turns. Complete all questions. Show all working out. Describe your use of technology Page 5 Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task 3. a) Use the graph from 2. a) to calculate the acceleration at: i) t = 25 ii) t = 40 b) Calculate the area under your graph in 2 b). What does this area represent? Use your calculation to comment on the accuracy of your velocity-time graph. Complete all questions. Show all working out. Describe your use of technology Page 6 Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task 4. a) One of the most action packed sections of the circuit is the Jones chicane located at turn one (a chicane is an S-shaped bend in a road used to slow traffic). Using a map you have found in your research, and the data in the table below, determine the deceleration at the Jones chicane given that the brakes are applied for only 1.7 seconds. Turn 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 max. speed before turn (km/hr) 305 — 182 — — 283 — — 280 — 292 — 296 232 238 Braking time (Sec) 1.7 — 0.5 — — 1.4 1.1 0.5 1.7 0.5 1.6 min. speed on turn (km/hr) 145 200 92 145 239 134 186 255 115 — 226 233 138 205 84 180 b) Compare this braking time with other turns (where the available data allows). What turn has the fastest braking rate? Complete all questions. Show all working out. Describe your use of technology Page 7 Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task Note: This is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Additional working space Complete all questions. Show all working out. Describe your use of technology Page 8 Specialist Mathematics Unit 4 Outcomes Outcome 1 Define and explain key terms and concepts. SAC 3 Applications of Integration Area of Study Integration High Key Knowledge & skills 3 2 Can calculate average and instantaneous speeds (q1a) Consistently, accurately, with no errors. Apply a range of related mathematical routines and procedures. Can construct a v-t graph (q2b). Consistently, accurately, with no errors. Can use a vt graph to calculate acceleration (q3a) Consistently, accurately, with no errors. (By hand as well as using appropriate technology.) Can use a v-t graph to calculate distance (q3b) Consistently, accurately, with no errors. Can convert units appropriately (q1a, 3, 4) Consistently and accurately. Outcome 2 Apply, analyse and discuss mathematical processes. Outcome 3 Select and appropriately use technology. Key Knowledge and skills Applies appropriate key mathematical concepts to the F1 circuit. (All questions) Demonstrated understanding of how mathematics used related to the reality of the F1 context. (q1b,c,d;2a). Key Knowledge and Skills Uses technology appropriately to solve problems. Medium Generally with few errors. Generally successful with only minor errors. Generally with few errors. Generally with few errors. Generally successful with only minor errors. Marking Scheme Low Not Shown 1 0 Recognized processes involved but had little success in determining achieving a result. Recognized processes involved but had many inaccuracies. Recognized processes involved but had little success in determining achieving a result. Recognized processes involved but had little success in determining achieving a result. Limited conversion or conversion with many errors or omissions. Total Could not calculate speeds. /3 Could not construct graph. /3 Could not calculate acceleration. /3 Could not calculate acceleration. /3 Did/could not convert units. /3 /15 9-10 6-8 3-5 Outcome One Total 1-2 Consistently and accurately applied key concepts with few errors. Consistently and accurately related mathematics to real context. Generally applied key concepts with some errors or omissions. Generally applied key concepts with some errors or omissions. Limited application with many errors or omissions. Application not demonstrated /10 Generally related mathematics to real context with a few errors or omissions Some understanding of connection with some errors or omissions. Limited understanding with many errors or omissions. No understanding apparent. /10 5 3-4 Effectively and consistently used appropriate technology. Generally used appropriate technology effectively. 2 Some effective use of appropriate technology. Outcome Two Total 1 Limited and/or ineffective use of technology. 0 /20 0 Did not use technology Outcome Three Total Total /5 /5 /40 s is an analysis task. You must show step by step working out. Also, you must explain your use of technology. Year 11 Mathematical Methods Unit 2 Rates of Change Problem Solving Application Task © State of Victoria 2008 Alan Thwaites is involved in the Intel Teach Program and developed this portfolio, in collaboration with other teachers. Copyright is owned by the Crown in right of the State of Victoria. It may be reproduced in whole or in part for study or training purposes, subject to the inclusion of an acknowledgment of the source and no commercial usage or sale. Reproduction for the purposes other than those indicated above requires the written permission of the Department of Education and Early Childhood Development. Requests and enquiries concerning reproduction and copyright should be addressed to the Liability Management Manager, Department of Education and Early Childhood Development, 2 Treasury Place, Melbourne, VIC, 3002 The State of Victoria accepts no responsibility for the accuracy of any part of this material and bears no responsibility for any modifications made. * Other names and brands may be claimed as the property of others. Complete all questions. Show all working out. Describe your use of technology Page 10