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Problem Based Learning

Problem Based Learning. DkIT First Year Comparison PBL to Traditional Teaching Method. Our Customers – Survey of DkIT Graduate Employers. What our customers want from us? Who are our customers. The employers What our customers want – DkIT survey (2003) Team work

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Problem Based Learning

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  1. Problem Based Learning DkIT First Year Comparison PBL to Traditional Teaching Method

  2. Our Customers – Survey of DkIT Graduate Employers. • What our customers want from us? • Who are our customers. • The employers • What our customers want – DkIT survey(2003) • Team work • Problem solving skills • Quality systems • Technical Skills

  3. The Problem • Our students were having great problems with Physics. • Our overall retention was not good. • We were not delivering students with the correct skill set to the employers.

  4. An Answer PBL

  5. Standard of Student • All qualified applicants (AQA) on Certificate courses • Standard of student intake much higher in the past, however introduction of new degree courses has increased standard. • Two choices in order to maintain\improve retention rate: 1. Dumbing down. 2. Student centred learning (PBL)

  6. The Implementation • Staff training in PBL techniques • All physics teaching on Science courses changed to PBL beginning Sept 2003 • Student numbers: • 03/04 = 48 07/08 = 67 • 04/05 = 52 08/09 = 68 • 05/06 = 54 • 06/07 = 64

  7. Problem Duration • Each session ideally lasts 2 hours. • Problems last 2, 4, or 6 hours. • Students take other subjects – NON PBL, but forms of student centered learning now used in some subjects. • Fully integrated tutorial and Lab sessions. • 20 problems cover total syllabus.

  8. Physical Conditions • Only one dedicated Physics PBL laboratory • 4 workbenches ( 6 students max per bench) • 5/6 students per PBL group. (Ideal) • 5 networked computers installed, plus printer, in lab. • Extensive library of Physics books in the lab. • Whiteboard, E-Beam system, and networked computer, for each PBL workbench.

  9. P.B.L The Process Summarised!

  10. Setting the Climate: 1Assign roles for the problem. 2Make or review the team ground rules. 3 Members contribute constructively towards resolving the problem and maintaining an effective working team using the PBL process.

  11. Encountering a New Problem: • 1 Consider the problem as presented. • 2Rewrite the problem as you understand it. • 3 Clarify: • The kernel of the problem. • What you are expected to produce.

  12. Using the Four Columns:

  13. Self Directed Learning: • 1 Everyone follows up on the key learning issues. • 2Other learning issues are followed up by individuals as assigned in the action plan. • 3 Library, computer searches, resource people, other resources.

  14. Assessment Strategy • 3 Phases: • Attendance mandatory. • Phase 1: • Tutor assess process. • Tutor assess product. Marks Pro-rated on attendance. • Phase 2: • Self Assessment of process, Tutor assess process and product, Pro-rated. • Phase 3: • Peer Assessment.

  15. Analysis of Physics results( including Autumn repeats)

  16. 02/03 Physics Exam Results – Christmas, Easter, & Summer

  17. 03/04 Physics Exam Results -Christmas, Easter, & Summer

  18. Key Points • Christmas, Easter and Final exam marks showed a significant improvement • Summer pass rate (including Continuous Assessment) increased from 67% to 91 % (average) using PBL • Retention Rate ( as applied to Physics) increased from 49% to 72 % (average) using PBL

  19. Student Comments • A survey of the students was conducted. Some of their comments: • “As I am repeating the subject this year I can honestly say this method is by far a better way of teaching than lecture based learning.” • “For a person who has never done physics before I find it very interesting and it’s a change from long classes.” • “It stays in your head because you have to find the information yourself.” • “PBL should be carried out in every subject.”

  20. Disadvantages of PBL • Very resource intensive • Room must be suitable for group work • Initial equipment costs can be high • Staff – student ratio must be low • Producing good problems is very time consuming

  21. Advantages of PBL for students • Deeper understanding of subject • Problem solving skills • Team working skills • Increase of self esteem • Increase of self confidence • Leadership skills • Research skills

  22. Advantages of PBL for staff • Facilitator role • Increased interaction with students • Increased motivation due to student interest • Team teaching skills • More relaxed environment • It`s fun

  23. Oh Rats ! • You are at the wheel of your brand new Ford Mondeo, with your engine idling, waiting for your friend to come out of the shop. Suddenly, 40 metres ahead of you, a rat starts crossing the road. All else is forgotten, except that you want to kill that rat. (You absolutely hate rats). • The road is 10 metres wide. Can you hit the rat before it finishes crossing the road ? • Accept it as a curious fact that this particular rat is blind and deaf, and moves at a steady speed of 2 m / s.

  24. Bet you can`t weigh an atom ! • Last night you were bragging to your friend about this wonderful new PBL physics course and that you feel that you could tackle any problem. • Your friend says to you that on the farm they use “ Bluestone” which she thinks contains a metal of some sort. • “So what” you said • “I bet you can`t weigh the metal atom in it” she said with a twinkle in her eye. • You just can`t resist a challenge. • The electric charge on an electron = 1.60 x 10-19 C

  25. THE MAGICIAN The year is 1255, and you are an apprentice alchemist in the Transylvanian School of Magic. The grand wizard John the Just, and his two warlocks ,Tony the Great and Henry the Wise, have provided you with a magic spell to remove any accumulated metal from an electrode used in the secret art of electrolysis. In the ongoing task of trying to turn ordinary metals into gold, the archmage Ted the White has run out of iron metal. You have been ordered by the grand wizard to produce 5g of iron metal for use by Ted the White, but he also wants to know how long he will have to wait if you start work immediately. Looking around your laboratory, you find that you have all the necessary equipment for the electrolysis process. There is also a very large bottle of iron ( III ) sulphate, and a battery capable of producing an electric current of 0.8 A in the electrolysis of this solution.( The battery was a present from an alien time traveller, called Marty, on his way back to the future) Marty also forgot his notebook, which contains the following information : Molar mass of iron = 55.85 g Electric charge on an electron = 1.6 x 10-19 C Avogadros number = 6.02 x 1023 mol-1

  26. QUEEN BREDAS BATH It is the year 3042, and you have been transported from your homeland by the CAO to the kingdom of Studentia, ruled by the overlord, Dennis the Destroyer. The overlord has sent you to the province of Science, to be a slave to its ruler, the Barbarian Queen Breda. The only way to earn your freedom is to carry out your duties to the complete satisfaction of the Queen. The weather in Studentia at this time of year is dry and settled, with the temperature being about 10oC throughout the day. Your first task is to prepare Queen Bredas ceremonial bath, which, according to tradition, must be at body temperature. The traditional way of preparing the bath is to carry the sacred hot and cold water in ceremonial shells which are filled from the Volcanic spring and the Glacier spring, which are both close to the ceremonial mound which contains the ceremonial bath. As this is your very first task, you decide to sneak out at night to look at each spring. At the Glacier spring, there are lots of small icebergs which have broken off from the glacier, and are floating around in the small pool. Beside the spring are the blue shells used to carry the sacred cold water. There are three sizes of 10 litres, 5 litres, and 1 litre. The shells are made from a special insulating material, which ensures that the temperature of the water in the shell remains constant. The ceremonial mound containing the bath, is a short walk away from the Glacier spring, and it takes you about 1 minute to get there. You decide to take a closer look, and find that the mound appears to be made of bark chips, but they are very soft. The bath itself is round, made of metal, and has a brown colour with streaks of green. You estimate the dimensions of the bath to be : Diameter = 1.5 m Depth = 0.6 m Thickness of the bath material = 5 mm As you leave the ceremonial mound, you take a 30 second walk to the Volcanic spring, where there are lots of hot rocks falling into the lake, and the water is constantly on the boil. The red shells used to carry the sacred hot water are beside the lake. These shells are made of the same special insulating material, and there are the same three sizes as the blue shells. On the way back to your sleeping quarters, you realise that a plan is needed in order to make sure that Queen Breda is satisfied with her bath in the morning, which is scheduled to take place at 11.00 am

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