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Association of Mathematics Educators Seminar on PSLE Mathematics

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This seminar was for parents and teachers interested in helping students in preparing for the PSLE Mathematics.

This seminar was for parents and teachers interested in helping students in preparing for the PSLE Mathematics.

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  • 1. mathematics
    Yeap Ban Har
    Marshall Cavendish Institute, Singapore
    & Pathlight School, Singapore
    banhar.yeap@pathlight.org.sg
    www.banhar.blogspot.com
    12 March 2011 @ Raffles Institution
    ORGANIZED BY
  • 2. Woodlands Primary School
    • The Curriculum
    • 3. The Format
    • 4. Mental Strategies
    • 5. Visual Strategies
    • 6. Core Competencies in Problem Solving
    mathematics
    ORGANIZED BY
  • 7. The Curriculum
  • 8. The Curriculum
  • 9. Reference: Page 80
    The Format
  • 10. Just-for-Fun Problem
  • 11. 3x + 4y + 5z = 50
    1 5
    7
    3 4
    6
    x + y + z = 13
    5 3
    5
    3x + 3y + 3z = 39
    7 2
    4
    y + 2z = 11
    9 1
    3
    2
    11 0
    Just-for-Fun Problem: Solution
  • 12. Which of the following numbers is the largest?
    6.59
    6.95
    6.509
    6.905
    See Examples on Page 1
    The Really Basic Stuff
  • 13. Mental Strategies
    A movie started at 11.55 p.m. and ended at 1.30 a.m. How long was the movie in hours and minutes?
    12.00
    1.00
    1.30
    There are 10 such MCQs in PSLE Mathematics.
    See Specimen Paper 1 Questions 1 – 10.
    The Really Basic Stuff
  • 14. Mental Strategies
    A machine can print 80 cards in 3 minutes.
    At this rate, how many cards can it print in 1 hour?
    30 minutes
    1 hour
    The Really Basic Stuff
  • 15. Mental Strategies
    Specimen Paper Question 9
    12 kg
    3
    4 kg
    The Really Basic Stuff
  • 16. Mental Strategies
    Specimen Paper Question 10
    47
    137 and 43 makes 180
    90
    100, 137
    The Really Basic Stuff
  • 17. Mental Strategies
    Find the value of 1000 – 724 .
    Find the value of 1050 – 264 .
    999 – 724
    724 and  makes 1000
    275
    So, 1000 – 724
    There are 10 such SAQs in PSLE Mathematics.
    See Examples on Page 9
    The Really Basic Stuff
  • 18. Mental Strategies
    Find the value of 1000 – 724 .
    Find the value of 1050 – 264 .
    1000 + 50
    990+ 60
    986+ 64
    786
    See Examples on Page 9
    The Really Basic Stuff
  • 19. Mental Strategies
    Find the value of 12.2 ÷ 4 .
    12 ÷ 4
    2 tenths ÷ 4
    20 hundredths ÷ 4
    3.05
    See Examples on Page 10
    The Really Basic Stuff
  • 20. Find the value of 12.2 ÷ 4 .
    See Examples on Page 10
    The Really Basic Stuff
  • 21. Mental Strategies
    Find the value of 35 ÷ 6 .
     
    See Examples on Page 9
    The Really Basic Stuff
  • 22. Visual Strategies
    Find the value of 35 ÷ 6 .
     
    See Examples on Page 9
    The Really Basic Stuff
  • 23. Visual Strategies
    Find the value of 35 ÷ 6 .
     
    See Examples on Page 9
    The Really Basic Stuff
  • 24. The Curriculum
  • 25. Pens are sold in packets of 5 pens. Each packet is sold at $7.
    Gopal has $30. How many pens can he buy at most?
    Answer: ________________
    See Examples on Page 12
    Basic Problem Solving
  • 26. Pens are sold in packets of 5 pens. Each packet is sold at $7.
    Gopal has $30. How many pens can he buy at most?
    Answer: ________________
    See Examples on Page 12
    Basic Problem Solving
  • 27. Foundation Mathematics Specimen Paper 2
    Cup cakes are sold at 40 cents each. What is the greatest number of cup cakes that
    can be bought with $95?
    $95 ÷ 40 cents = 237 remainder 20 cents
    Answer: ________________
    Basic Problem Solving
  • 28. Foundation Mathematics Specimen Paper 2
    Cup cakes are sold at 40 cents each. What is the greatest number of cup cakes that
    can be bought with $95?
    $95 ÷ 40 cents = 237.5
    Answer: ________________
    Basic Problem Solving
  • 29. Foundation Mathematics Specimen Paper 2
    Cup cakes are sold at 40 cents each. What is the greatest number of cup cakes that
    can be bought with $95?
    $95 ÷ 40 cents = 237.5
    Answer: ________________
    Basic Problem Solving
  • 30. 2-marks items are typically two steps with a few requiring competencies that are required in problem solving.
    See Specimen Paper 1 Questions 26 – 30
    Question 29
    5 : 1
    6 : 1
    Question 29
    5 : 1 = 35 : 7
    6 : 1 = 36 : 6
    Answer: 71 : 13
    There are 5 such SAQs in each Paper.
    Basic Problem Solving
  • 31. See Specimen Paper 1 Questions 26 – 30
    Question 30
    Basic Problem Solving
  • 32. 2-marks items are typically two steps with a few requiring competencies that are required in problem solving.
    See Page 13
    Problems that Requires Visualization
  • 33. PSLE 2006 – 2010 Page 13 Question 45
    Problems that Requires Visualization
  • 34. Problems that Requires Visualization
  • 35. Problems that Requires Visualization
  • 36.
  • 37. Source
    My Pals Are Here! Mathematics Primary 4
  • 38. See Page 13
    PSLE 2006 – 2010 Page 13 Question 46
    1.2 m x 42 = 50.4 m
    43 – 6 = 37 There were 36 spacing
    50.4 m ÷ 36 = 1.4 m The new spacing was 1.4 m.
  • 39.
  • 40. See Page 19
    PSLE 2006 – 2010 Page 19 Question 58
  • 41. PSLE 2006 – 2010 Page 19 Question 58
    3 x ? = 2 + 25
    ? = 9
    There were 10 girls.
    There were 9 x 11 + 6 = 8 x 10 + 25 = 105 sweets altogether.
  • 42. See Page 19
    PSLE 2006 – 2010 Page 19 Question 58
    Guess when each tried taking 11
    33 Last girl had 11 sweets
    41 Last girl had 8 sweets
    49 Last girl had 5 sweets
    57 Last girl had 2 sweets
  • 43. PSLE 2006 – 2010 Page 19 Question 58
    List 1 List 2
    11 + 6
    22 + 6
    33 + 6
    44 + 6
    55 + 6
    66 + 6
    16 + 25
    24 + 25
    32 + 25
    40 + 25
    48 + 25
    56 + 25
  • 44. PSLE 2006 – 2010 Page 19 Question 58
    List 1 List 2
    11 + 6
    22 + 6
    33 + 6
    44 + 6
    55 + 6
    66 + 6
    77 + 6
    88 + 6
    99 + 6
    16 + 25
    24 + 25
    32 + 25
    40 + 25
    48 + 25
    56 + 25
    64 + 25
    72 + 25
    80 + 25
  • 45. PSLE 2006 – 2010 Page 18 Question 55
    See Page 18
    Number of Apples
    Number of Oranges
    Number of
    Pears
    38
  • 46. PSLE 2006 – 2010 Page 18 Question 55
    See Page 18
    Number of Apples
    Number of Oranges
    Number of
    Pears
    38
  • 47. PSLE 2006 – 2010 Page 18 Question 55
    See Page 18
    Number of Apples
    Number of Oranges
    Number of
    Pears
    23
    15
    15
  • 48. PSLE 2006 – 2010 Page 18 Question 55
    See Page 18
    5 units = 90 + 15 = 105
    Number of Apples
    Number of Oranges
    Number of
    Pears
    105 : 5
    = 21
    Number of oranges used
    = 65 – 21 = 44
    23
    15
    15
    Number of pears = 21 + 21 + 23 =65
  • 49. PSLE 2006 – 2010 Page 18 Question 55
    See Page 18
    5 units = 90 + 15 = 105
    Number of Apples
    Number of Oranges
    Number of
    Pears
    105 : 5
    = 21
    Number of oranges used
    = 65 – 21 = 44
    23
    15
    15
    Number of pears = 21 + 21 + 23 =65
  • 50. Woodlands Primary School
    mathematics
    banhar.yeap@pathlight.org.sg
    www.banhar.blogspot.com
    www.banhar.blogspot.com
    ORGANIZED BY
  • 60. Woodlands Primary School
    Go to Marshall Cavendish Institute’s Facebook for Diary of Parent Education Courses and Teacher Professional Development opportunities.
    banhar.yeap@pathlight.org.sg
    www.banhar.blogspot.com
    www.banhar.blogspot.com
    ORGANIZED BY

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