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Solving Time Allocation in Mathematical Problems Using Heuristics: A 2009 PSLE Case Study

Join Adrian Ng, Principal Trainer, as he presents a heuristic approach to solving challenging primary mathematical problems. This session focuses on a specific 2009 PSLE exam question involving six friends who rented computers from 2:00 PM to 4:30 PM. Through systematic listing and equitable time allocation, we explore how each friend can optimally play within a total of 150 minutes, ensuring fairness. This practical training will enhance your problem-solving skills in mathematics and prepare you for similar challenges.

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Solving Time Allocation in Mathematical Problems Using Heuristics: A 2009 PSLE Case Study

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Presentation Transcript

  1. Adrian Ng Principal Trainer Proudly Presents Heuristics Approach Solving Challenging Primary Mathematical Problems

  2. Systematic listing

  3. Six friends decided to rent computers from 2.00pm to 4.30pm. Four of them were playing while the other two would watch. If the cycle continues, and each of them played for equal number of minutes, how many minutes will each person get to play? 2009 PSLE question Friends Group 1 1 1 1 1 1 1 2 1 1 3 1 1 1 1 1 1 1 4 1 1 1 1 5 1 6 1 1 1 1 4 4 4 4 4 4 Total (each) 2.00pm to 4.30pm  150min 150min/6 = 25 min per group 25x4 = 100 min Ans: 100 min

  4. Note: This question was provided by students who have sat for the 2009 examination. It may vary from the actual examination question.

  5. Thank You

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