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This session is on problem-solving heuristics for parents of primary one and two children.

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- 1. Problem Solving Heuristics for Lower Primary Mathematics Yeap Ban Har Catholic High School (Primary)
- 2. MATHEMATICAL PROBLEM SOLVING
- 4. The rationale of teaching mathematics is that it is “an excellent vehicle for the development and improvement of a person’s intellectual competence ”.
- 5. National Institute of Education
- 6. Wellington Primary School, Singapore Ministry of Education Singapore 2006 an excellent vehicle for the development and improvement of a person’s intellectual competence “ ” mathemati cs
- 7. Move 3 sticks to get two squares.
- 8. Move 3 sticks to get two squares.
- 9. Wellington Primary School, Singapore
- 10. Wellington Primary School, Singapore
- 11. Wellington Primary School, Singapore
- 12. Wellington Primary School, Singapore
- 13. Wellington Primary School, Singapore
- 14. Wellington Primary School, Singapore
- 15. John had 1.5 m of copper wire. He cut some of the wire to bend into the shape shown in the figure below. In the figure, there are 6 equilateral triangles and the length of XY is 19 cm. How much of the copper wire was left? 19 cm x 5 = 95 cm 150 cm – 95 cm = 55 cm
- 16. Example 1
- 17. F A M I L Y F A M I L Y F A M I L Y . . .
- 18. F A M I L Y F A M I L Y F A M I L Y . . . 6th 12th 18th What is the 50th letter?
- 19. Example 2
- 20. 104, 124, 144, 164, 184, . . .
- 21. 10 4, 12 4, 14 4, 16 4, 18 4, 20 4, . . .
- 22. 10 4, 12 4, 14 4, 16 4, 18 4, 20 4, 22 4, 24 4, 26 4, Position Number 1 10 2 12 3 14 4 16 5 18 … … 19 ?
- 23. Example 3
- 24. Even routine tasks such as finding the value of 7 x 9 are initially problems.
- 25. 2 x 9 = 18 5 x 9 = 45
- 26. Primary Mathematics Standards Edition
- 27. Example 4
- 28. 199 – 39 = 160 200 – 39 = ?
- 29. Example 5
- 30. 17 + 19
- 31. 17 + 19 16 + 20
- 32. Example 6
- 33. - 3
- 34. 100 - 97 3 101 - 98 3 102 - 99 3
- 35. - 5
- 36. 100 - 95 5 101 - 96 5 102 - 97 5 103 - 98 5 104 - 99 5
- 37. Children may do guess-and-check to get the solutions. Some children may observe a pattern / relationship. Guess-and-check and observe a pattern are examples of heuristics.
- 38. Example 7
- 40. <ul><li>Khon Kaen, Thailand </li></ul>
- 41. 4 1 5 2 3
- 42. Princess Elizabeth Primary School
- 43. Princess Elizabeth Primary School
- 44. Example 8
- 45. 2 4 5 Use a table is another problem-solving heuristic in mathematics. 2xx 4xx 5xx 245 254 425 452 524 542
- 46. Example 9
- 48. 1 5 4 2
- 49. Example 10
- 50. A cupcake is sold at 40 cents each. How many cupcakes can be bought using $1 coin?
- 51. Example 11
- 52. A cupcake is sold at 40 cents each. How many cupcakes can be bought using $95?
- 53. Example 12
- 54. Ali has 3 picture cards. Janice has 2 more cards than Ali. How many picture cards do they altogether? Ali Janice
- 55. Ali has 19 picture cards. Janice has 12 more cards than Ali. How many picture cards do they altogether? 19 Ali Janice 12
- 56. Ali has 19 picture cards. Janice has 12 more cards than Ali. How many picture cards do they altogether? 19 Ali Janice 12
- 57. Example 13
- 58. Alan has 19 picture cards. He has 12 more cards than Bala. How many picture cards do they altogether? 19 Alan Bala 12
- 59. Example 14
- 60. Roy has some picture cards. Samantha has 12 more cards than Roy. They have 20 cards altogether. How many cards does Samantha have? Roy Samantha 12 20

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