PSLE - New Format for Maths
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endingteen:
actually i hae no idea why they introduced the use of calculators into the PSLE. i mean i do not see the point in making tough questions to cater for the use of the calculator. i remember my psle being a test for us to use your mental calculations and the 'model' method to solve questions. calculators are actually only needed in the upper secondary years.
Some people children cannot count mentally, so must help them lah :oops: -
Vanilla Cake:
If you were to take this answer and work backwards, will it work? mine ans is 44Hi kohjl,
Q18 of paper 2 (last question) is something like this and I think that your son has got the right answer ( 68 ).Here it goes (not in exact words):
Q18
Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim.Jim ate 12 sweets and Ken ate 18 chocolates.The ratio of Jim's sweets to chocolates became 1 : 7 and the ratio of Ken's sweets to chocolates Ken became 1:4.How many sweets did Ken buy?
Suggested solutions
Draw a model to show \"after eating\" scenario, \t\t
\t\t\t
Ratio of Jim's sweets to chocolate (1:7)
Sweets []
Chocos [][][][][][][]
Ratio of Ken's sweets to chocolate (1:4)
Sweets [] +12 (+12 refers to the sweets eaten by Jim)\t\t\t
Chocos [][][][] (+12x4) - x 4 times
\t
Both amount of Chocolates are the same,so
(7-4) units = (12x4) + 18 (18 chocolates were eaten by Ken)
3 units = 66
1 unit = 22\t\t
\t\t\t
Amount of sweets bought by Ken->(unit +12)x2=(22+12) x 2 =68
Or use algebra which is easier.
Assume that sweets that Ken bought was S and chocolates that bought by Jim was C.
Before both of them ate, they had:
Ken -> 0.5C + 0.5S
Jim -> 0.5C + 0.5S
as each of them gave 1/2 to each other.
Jim ate 12 sweets and the ratio of Jim's sweets to chocolates became 1:7.
(0.5S-12)/0.5C = 1/7
3.5S-84=0.5C
Ken ate 18 chocolates and the ratio of Ken's sweets to chocolates became 1:4.
0.5S/(0.5C-18 ) = 1/4
(0.5C-18 ) / 0.5S = 4
0.5C-18 = 2S
3.5S-84-18=2S
3.5S-2S = 84+18
1.5S = 102
S = 102/1.5 = 68
Amount of sweets bought by Ken-> 68
since both Jim and Ken did not eat the stuff that they bought, their ratio at the start and at the end would be the same isnt it.. correct me if i am wrong..
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Dear all,
One of the problems here in Singapore for PR 6 pupils - algebra is not enough taught. They teach a ratio, but do not teach them that A/B=C/D is the same as AxD=BxC and the same as A/C=B/D. Every time when I was trying to teach my gal how to solve the problems using algebra, she was telling me \"No, the teacher did not solve that way-by algebra\". Not teaching algebra they / I mean MOE / did not give them a chance to choose the method. Models, models and again models. Algebra is an abstraction for the pupils here. Yes, I know, for PSLE, its important to get the correct answer-the method is not important. But how to use algebra like a method if you are not confident enough with it? The other problem-geometry, again insufficiently taught.
One more thing. Why the Maths Paper is not published yet ? Anybody to answer ? In my country, even under the blackout- 25 years ago, it was possible to see all of the MATHS Problems from the Paper and their solving in the newspapers on the next day, published by Ministry of Education. So I am waiting to see 48 Maths problems and there solving in The Newspaper.
Best to all of our Pr 6 children today for the Science paper!
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No worries.....they will do some moderations to the final score. Anyway, this is not the end of anyone's dream. Cheers!
eddie tan:
i think most p6 student NO HOPE to go to their dream sch already ready to go to lousy sch :love: :love: :love:
:shock: :shock: 
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Come to think of it, in our primary school days, our maths questions were not that tough. And we never fail to \"produce\" doctors, lawyers, architect...etc...etc.... :celebrate:
No worries, kiasu parents, all your children definitely can make it to their choice of schools
And if you don't, not the end...not the end.....don't give up !!! All we want is to see our kids happy. And when they are happy, they can do wonders.
Cheers! -
Mandy-Alex:
Some people argue for the teaching of Algebra in primary level, just like some people argue for the use of calculators years ago, and one day it may just come true and then the floodgates for new problem sums types involving Algebra will be open, and P6 students might end up practising Additional Maths type of questions in PSLE. So be happy that Algebra is not required for problem solving, for now.Dear all,
One of the problems here in Singapore for PR 6 pupils - algebra is not enough taught. They teach a ratio, but do not teach them that A/B=C/D is the same as AxD=BxC and the same as A/C=B/D. Every time when I was trying to teach my gal how to solve the problems using algebra, she was telling me \"No, the teacher did not solve that way-by algebra\". Not teaching algebra they / I mean MOE / did not give them a chance to choose the method. Models, models and again models. Algebra is an abstraction for the pupils here. Yes, I know, for PSLE, its important to get the correct answer-the method is not important. But how to use algebra like a method if you are not confident enough with it? The other problem-geometry, again insufficiently taught.
One more thing. Why the Maths Paper is not published yet ? Anybody to answer ? In my country, even under the blackout- 25 years ago, it was possible to see all of the MATHS Problems from the Paper and their solving in the newspapers on the next day, published by Ministry of Education. So I am waiting to see 48 Maths problems and there solving in The Newspaper.
Best to all of our Pr 6 children today for the Science paper!
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Since it’s over just let it be. Don’t blame MOE for setting ‘difficult’ papers. Exams are to differentiate the calibre of the breeds. If he can’t score, that means your kid isn’t what the system has defined as the cream of the crop. So spare your wishful thinkings that he should go to a good school, when he’s not even qualified. What parents should do now, after the science exam, is to give their kids a nice break. Comfort and assure them that they have had a tough time and deserve a good rest. I think kids at this age aren’t really bothered by the grades for getting into a good school, as they wouldn’t even know wad a good school is! They are upset because they failed to meet their parents’ expectation. And here on the other hand, parents are blaming this and that. They point fingers at everyone else except themselves.
No wonder nowadays the kids I taught blame everyone else for not getting good grades, except themselves. I see effective parenting here; learn from the parents. -
tutormum:
......Moreover, being good in Maths plays only a small part in getting into top schools. One has to be good in all four subjects. ...
Hate to disagree but I have to.
Assuming A and B are equally good in other subjects. However, A is exceptionally good in English while B is exceptionally good in Math.
If the Math paper is a \"normal paper\", and the English paper is difficult, A will get 100 for math and so will B. Child A will only have a slight advantage over B in English because B will probably still get a high A.
However, with a difficult math paper, B will still get 100 for math but A's mark may drop to 85. At the end, some children in category A will be squeezed out because of the Math paper.
Such kind of paper does not provide a fair assessment because the level of mathematical skill being tested is way beyond the expected ability of a P6. The situation is quite similar to using a part of Shakespear's play as the comprehension passage for the English paper. It sounds ridiculous, but the effect of the questions on \"angle\" and \"speed\" are exactly the same as what a Shakespear's play will have on those children who have never encountered such questions or play. -
friendlymom:
You are not only a friendly mom but a lovely one too ! Hope to see all little smiling faces at 10am today :celebrate: .Come to think of it, in our primary school days, our maths questions were not that tough. And we never fail to \"produce\" doctors, lawyers, architect...etc...etc.... :celebrate:
No worries, kiasu parents, all your children definitely can make it to their choice of schools
And if you don't, not the end...not the end.....don't give up !!! All we want is to see our kids happy. And when they are happy, they can do wonders.
Cheers! -
:oops: thank you ...u made my day.....in fact...i'm really a LOVELY mom....hahahaha!!!
[quote]You are not only a friendly mom but a lovely one too ! Hope to see all little smiling faces at 10am today :celebrate: .[/quote]
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