Seminar for Parents at PLMGS on PSLE

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This seminar was for parents of primary six students in a all-girls' school in Singapore. PSLE is the national examination in Singapore taken at the end of Grade 6.

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Seminar for Parents at PLMGS on PSLE

  1. 1. PSLE Mathematics<br />DrYeap Ban Har<br />Marshall Cavendish Institute<br />Singapore<br />www.banhar.com<br />Photo Credit: Students solving a mathematics problem using draw-a-diagram heuristic at Da Qiao Primary School.<br />
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  9. 9. Model Method<br />3 units = $12<br />1 unit = $4<br />8 units = 8 x $4 = $32<br />Kyla had $32 at first.<br />Alternate Method<br />$12 ÷ 3 x 8 = $32<br />
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  12. 12. boys<br />34<br />girls<br />
  13. 13. boys<br />68<br />girls<br />
  14. 14. boys<br />88 – 68 = 20<br />girls<br />
  15. 15. boys<br />88 – 68 = 20<br />girls<br />
  16. 16. boys<br />girls<br />
  17. 17. boys<br />girls<br />
  18. 18. boys<br />2 girls units = 14<br />34<br />1 girls unit = 7<br />girls<br />3 girls units = 21<br />21 girls wore goggles that day.<br />34 – 20 <br />
  19. 19. PSLE 2006 – 2010 Page 13 Question 45 <br />
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  22. 22. Photo: Woodlands Primary School<br />
  23. 23. PSLE 2006 – 2010 Page 13 Question 46 <br />1.2 m x 42 = 50.4 m<br />43 – 6 = 37 There were 36 spacing<br />50.4 m ÷ 36 = 1.4 m The new spacing was 1.4 m. <br />
  24. 24. PSLE 2006 – 2010 Page 19 Question 58 <br />Guess when each tried taking 11<br />33 Last girl had 11 sweets <br />41 Last girl had 8 sweets <br />49 Last girl had 5 sweets <br />57 Last girl had 2 sweets <br />
  25. 25. PSLE 2006 – 2010 Page 19 Question 58 <br />List 1 List 2<br />11 + 6 <br />22 + 6<br />33 + 6<br />44 + 6<br />55 + 6<br />66 + 6 <br />16 + 25<br />24 + 25<br />32 + 25<br />40 + 25<br />48 + 25<br />56 + 2<br />
  26. 26. PSLE 2006 – 2010 Page 19 Question 58 <br />List 1 List 2<br />11 + 6 <br />22 + 6<br />33 + 6<br />44 + 6<br />55 + 6<br />66 + 6<br />77 + 6<br />88 + 6<br />99 + 6 <br />16 + 25<br />24 + 25<br />32 + 25<br />40 + 25<br />48 + 25<br />56 + 25<br />64 + 25<br />72 + 25<br />80 + 25 <br />
  27. 27. PSLE 2006 – 2010 Page 19 Question 58 <br />3 x ? = 2 + 25 <br />? = 9 <br />There were 10 girls. <br />There were 9 x 11 + 6 = 8 x 10 + 25 = 105 sweets altogether. <br />

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