2010 PSLE Mathematics

Reply to 2010 PSLE Mathematics on Wed, 01 Aug 2012 08:53:41 GMT

Michaelia0816 — Wed, 01 Aug 2012 08:53:41 GMT

But, I’d it is hard, yet someone score well, score high up!!

^
^
^ Here I goes

Reply to 2010 PSLE Mathematics on Thu, 07 Jul 2011 10:44:23 GMT

Brenda10 — Thu, 07 Jul 2011 10:44:23 GMT

Perpahs this year 2011 Math paper will be more tough than 2010!

Reply to 2010 PSLE Mathematics on Thu, 07 Jul 2011 10:29:33 GMT

Edureach — Thu, 07 Jul 2011 10:29:33 GMT

Difficult papers, received many complaints, too easy t-score affected. Maybe should continue to set an easy paper with two difficult questions throw in- comprising a total of 9 marks under section C?

Reply to 2010 PSLE Mathematics on Thu, 07 Jul 2011 10:14:30 GMT

kiasuparent1998 — Thu, 07 Jul 2011 10:14:30 GMT

Easy for both papers a & b.

Reply to 2010 PSLE Mathematics on Tue, 22 Mar 2011 14:43:16 GMT

unkiasustudent — Tue, 22 Mar 2011 14:43:16 GMT

The PSLE Math paper 2010 was too easy. I really did not expect that. But anyway it's already 2011 and I got into my choice school so never mind.

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 06:39:26 GMT

Augmum — Sun, 10 Oct 2010 06:39:26 GMT

MOE Hater:
tiger262:
[quote=\"kiasiparent\"]
if you can get 100/100, how to get low t-score?
In T-score computing, the 'mean' and the SD (Std Deviation) are the key-factors. If so many students score 100/100 or A*, then both 'mean' and 'SD' will be unusually high. In that case, the T-score will be lower.

Innocent students rejoice at the easy Maths paper since their raw scores will be higher. Unfortunately, since T-scores will be lower, I feel there is not much justification for the rejoicing. Finally, it is the T-score that really matters. Is it not?

When the mean is high, the standard deviation is usually lower than a difficult paper. So the marks are somewhat moderated, there no need to be so overly concerned[/quote]No doubt it is moderated, a near 100 or 100/100 raw marks
for an easy Maths paper is def lower compared to a diffcult one,
as the mean score and the number of perfect scores pupils are def raise.

just like last year, i can cautiously said that the difficult maths paper
did contribute to a a higher T-score as seen for my gal's case and some of them whom i know.......
on the other hand, it did pull down those who did Very Badly for that Maths paper,
as some of them had gotten a T-score of abt 10 points below expectations,
resulted in not able to get into their choice of schools.

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 06:05:40 GMT

livewith_vanilla — Sun, 10 Oct 2010 06:05:40 GMT

beauty queen:
MOE did satiisfy parentrs but it did not satisfy the top students who excel.......

Agreed.

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 06:03:08 GMT

beauty queen — Sun, 10 Oct 2010 06:03:08 GMT

MOE did satiisfy parentrs but it did not satisfy the top students who excel…

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 01:01:13 GMT

MOE Hater — Sun, 10 Oct 2010 01:01:13 GMT

tiger262:
kiasiparent:
[quote=\"hashroop\"]\"easy paper means lower T score..some parents pray for difficult paper\". Is this true? Heard from expert parents.

if you can get 100/100, how to get low t-score?

In T-score computing, the 'mean' and the SD (Std Deviation) are the key-factors. If so many students score 100/100 or A*, then both 'mean' and 'SD' will be unusually high. In that case, the T-score will be lower.

Innocent students rejoice at the easy Maths paper since their raw scores will be higher. Unfortunately, since T-scores will be lower, I feel there is not much justification for the rejoicing. Finally, it is the T-score that really matters. Is it not?[/quote]
When the mean is high, the standard deviation is usually lower than a difficult paper. So the marks are somewhat moderated, there no need to be so overly concerned

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 00:58:38 GMT

happyluckymom — Sun, 10 Oct 2010 00:58:38 GMT

What about the COPs of schools? Will they go down too compared to last year?

Reply to 2010 PSLE Mathematics on Sun, 10 Oct 2010 00:50:53 GMT

tiger262 — Sun, 10 Oct 2010 00:50:53 GMT

kiasiparent:
hashroop:
\"easy paper means lower T score..some parents pray for difficult paper\". Is this true? Heard from expert parents.

if you can get 100/100, how to get low t-score?

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 22:41:00 GMT

MOE Hater — Sat, 09 Oct 2010 22:41:00 GMT

lightbulb:
i got 46

, 9cm, 180cm, and 782 for the 2nd last qn.

an somebody tell me if that is confirm correct or not?

All right. lucky u :celebrate:

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 11:14:07 GMT

lightbulb — Sat, 09 Oct 2010 11:14:07 GMT

Strparent:
blessedami:
[quote=\"ekanil\"]Hi , my son says that the pattern is as follows :

1 ---------------------12(rods needed to make a cube)
2 ------------------- 20
3 ------------------- 28
4 ------------------- 33
5 -------------------- 41
6 -------------------- 46
Thanks,
Yes, I got the first number in the series wrong, regardless of which the answer is 782.

Yes, based on my visualization of the structure, item 3 should be 28, thereby the CORRECT answer to Q17c is indeed 782.

I am utterly impressed with the kids nowadays, they can summarise almost the whole exam papers a few hours after taking it, :celebrate:

This boy JianRong and his friends deserves a pat on their back.
http://www.onsponge.com/forum/35-thinkingmathonsponge/5790-how-did-you-do-psle-math-2010.html?limit=10&start=30

However, the relatively Maths paper is a little unkind to those who excel, as there were NO real difficult questions. DS said he was only able to use algebra once and it was a giveaway ( Q18 ). We should see a lot of A* this year.

Agreed with MOE Hater, the paper should have a few tough questions, as in 2009.

I sincerely believe this year's P6 cohort is one of the best academically in recent years, though the PSLE Tscore may not reflect so ultimately, due to the relatively easy papers so far for English, maths and Chinese. Easy papers raised the Median Score and affects the Standard Deviation substantially.

Jiayu to all [/quote]i agree. better more difficult paper so good pupils can show more potential.
heard that they qoing to raise the A star so not many pupils get A star for math.

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 11:12:10 GMT

lightbulb — Sat, 09 Oct 2010 11:12:10 GMT

i got 46

, 9cm, 180cm, and 782 for the 2nd last qn.

an somebody tell me if that is confirm correct or not?

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 03:43:50 GMT

Strparent — Sat, 09 Oct 2010 03:43:50 GMT

blessedami:
ekanil:
Hi , my son says that the pattern is as follows :

1 ---------------------12(rods needed to make a cube)
2 ------------------- 20
3 ------------------- 28
4 ------------------- 33
5 -------------------- 41
6 -------------------- 46
Thanks,
Yes, I got the first number in the series wrong, regardless of which the answer is 782.

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 03:40:04 GMT

aada — Sat, 09 Oct 2010 03:40:04 GMT

MOE Hater:
aada:
Wad's paper 2 question 4? I need 2 check my answers

Is it the area of the quadilateral question? I split it into two right angled triangles. So,

1/2 x 7 x 9 + 1/2 x 3 x 11 = 48

Ans: 48cm2

Hope this helps.

Thks.
:lol:

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 03:38:06 GMT

MOE Hater — Sat, 09 Oct 2010 03:38:06 GMT

the kiasu student:
This year's Math PSLE was acceptable for pupils weak in maths and easy to pupils who excel in maths. Unlike previous years when parents complain of difficult questions, this year's paper was better. MOE sure did the right thing, with tougher questions at the last part of paper 2.

Thumbs up to MOE this year!

SERIOUSLY!!! As if I don't hate MOE enough! :x Why did they make it easy??!!! I want a hard paper

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 03:34:43 GMT

MOE Hater — Sat, 09 Oct 2010 03:34:43 GMT

Is it the amt. of money she had left question? If so,

1 - 5/12 = 7/12

$133.50 x 7/5 = $189.90

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 03:29:40 GMT

CVPSMASH — Sat, 09 Oct 2010 03:29:40 GMT

blessedami:
Vanilla Cake:
Hi,

Pls help to check and verify the answers as I got them from http://thinkingmath.com.sg/forum/35-thinkingmathonsponge/5790-how-did-you-do-psle-math-2010.html. Take note that the questions are not in exact words as appeared in the PSLE 2010 Maths exams.

Paper 1
Q1.\t3
Q2.\t1
Q3.\t1
Q4.\t3
Q5.\t3
Q6.\t4
Q7.\t3
Q8.\t1
Q9.\t2
Q10.\t2
Q11.\t4
Q12.\t4
Q13.\t2
Q14.\t1
Q15.\t4
Q16.\t9 cm \t
Q17.\t113°\t
Q18.\t3 and 11/25\t
Q19.\t1 and 5/21\t
Q20.\t0.625\t
Q21.\t6.4\t
Q22.\t1550 ml\t
Q23.\t$ 49.20\t
Q24.\t1/4\t
Q25.\t10:6:3\t
Q26.\t30 %\t
Q27.\t4.5 km/h\t
Q28.\t75 cm\t
Q29.\t60\t
Q30.\t5/9\t

Paper 2
Q1
List all the common factors of 12 and 18.
Ans: 1, 2, 3, 6

Q2's answers
a) West
b) Directly above the \"Swing\"

Q3
Ans: $ 186.90

Q4
Ans: 48 cm²

Q5
Faizal and Gary were racing. Both of them did not change their speeds throughout the race. They started at the same time and the same place. When Gary reached the finishing line, Faizal had only run 5/8 of what Gary had run. Gary speed was 75m/min faster than Faizal. What was Faizal's speed in m/min?\t
Ans: 125 m/min

Q6
John had 1.2m of wire. He used some of it to form a figure as shown below. (Figure has 5 lines)\t\t
a) Find how much wire he used to form this figure.\t\t
b) If k=15, find the length of wire that he did not use.\t\t
Ans: (a) (6k+3) cm (b) 27 cm

Q7
The table below shows the number of books read by pupils in a class of 30. The average number of books read by the 30 pupils is 6. What is the missing number in the table?
-----------------------------------------------------------\t\t\t\t
| Average number of Books | Number of Pupils |\t\t\t\t
-----------------------------------------------------------\t\t\t\t
|                0                        |            10            |\t\t\t\t
|                 8                        |            15            |\t\t\t\t
|                 ?                        |              5            |\t\t\t\t
-----------------------------------------------------------\t\t\t\t
Ans: 12

Q8
When a jar is filled with 40 screws, the jar weighs 1.4kg. When the jar is filled with 20 iron nails, the jar weighs 500g.Each screw's mass is twice that of an iron nail. What is the mass of the jar when empty?
Ans: 200 g

Q9
Angle question
Ans: 78°

Q10
Two quadrants are cut out of a rectangular sheet of paper.
Ans: 5 cm

Q11
There are 320 marbles put into 4 different boxes. Box A has the most marbles whereas Box D has the least marbles.The difference in the number of marbles in Box A to the number of marbles in Box B, C and D is 8, 13 and 19. What is the number of marbles in Box D?

Ans: 71

Q12
A group of girls wants to take some sweets. If each girls takes 11 sweets, one of the girls will only have 6 sweets.If each girl takes 8 sweets, there will be 25 sweets left over. How many sweets are there?\t
Ans: 105 sweets

Q13
Geometry question
Ans: 118°

Q14
A person bought a pair of shoes and a bag. He spent $57.60 in total. The pair of shoes costs $9.60 more than the bag. He was given a total discount of $22.40 for the 2 items. A 25% discount was given for the bag.\t
(a)Find the cost of the pair of shoes.\t
(b) Find the percentage of discount given for the pair of shoes.
Ans: (a) $ 33.60 (b) 30%

Q15
(Based on graph)
(a) What fraction of the tank was filled after 4 minutes?
(b) How much water flows from Tap B in 1 minute?
Ans: (a) 1/7 (b) 3.75 litres/min

Q16
Nurul and Peili shared a sum of $60. Nurul spent twice as much as Peili. What Peili had left was $7 more than what she had spent. Peili had twice as much as Nurul in the end.
(a) How much did Peili spend?
(b) How much did Nurul have at first?
Ans: (a) $11 and (b) $31

Q17
Structure Number  Number of Rods  Height (cm)\t\t\t\t
------------------------------------------------------------\t\t\t\t
            1                        12                      3\t\t\t\t
            2                        20                      3\t\t\t\t
            3                        25                      6\t\t\t\t
            4                        33                      6\t\t\t\t
            5                        38                      9\t\t\t\t
            6\t\t\t\t
------------------------------------------------------------\t
a) Fill in the number of of rods and height for structure 6. [1 mark]
b) Find the height of Structure 119. [2 marks]
c) Find the number of rods for Structure 119. [2 marks]

Ans (a)46 and 9 (b)180 (c)779

Q18
Tank B is empty and Tank A is 1/3 filled. Water flows in from a tap at a constant rate of 1.2 litres per minute.How long will it take for both tanks to be of the same height?
Refer to http://thinkingmath.com.sg/forum/35-thinkingmathonsponge/5790-how-did-you-do-psle-math-2010.html?limit=10&start=10.

Ans: 15 min
I see that you have changed the answer for 17 c) to 779.

But what I remember of the series given is that

1 ---------------------15
2 ------------------- 20
3 ------------------- 28
4 ------------------- 33
5 -------------------- 41
6 -------------------- 46

Can anyone confirm this for me ?
How can a P6 student confuse this series with

1---------------------- 12
2 --------------------- 20
3---------------------- 25
4---------------------- 33
5 --------------------- 38
6 --------------------- 46

:?

What's the question for paper 2 Q3?Anyone remember?
Anyway,I think for paper 2 I got Q17C,Q7 and maybe Q14b wrong only but for Q14b i forgot what's my answer so didnt know if im right or wrong.

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 02:49:31 GMT

Skydust — Sat, 09 Oct 2010 02:49:31 GMT

PSLEstudent2010:
beauty queen:
[quote=\"beauty queen\"]

not to offend your ds i found it easy i posted the answers on the psle buzz thread check it out!! All the best to your ds :celebrate:

DS of Beauty Queen

Here you go~

The pattern question is 46 , 9, 180 and 782

the shopping question is 11 and 31

The tap question is 15

The spped question paper 2 is 125m/min paper 1 4.5 km/h

yeah want to know any other answrs for question just ask.

DS of Beauty Queen

for the shopping question, my answer is 9 and 29!!
are you sure yours is correct??

I am simply so dumb! at the very LAST MINUTE, i went to change my correct answer to a wrong one!!! AAAAAAAAAAH![/quote]Yes it's 11 and 31. I used guess and check to double check the answer.

Reply to 2010 PSLE Mathematics on Sat, 09 Oct 2010 00:40:06 GMT

hashroop — Sat, 09 Oct 2010 00:40:06 GMT

kiasiparent:
hashroop:
\"easy paper means lower T score..some parents pray for difficult paper\". Is this true? Heard from expert parents.

if you can get 100/100, how to get low t-score?

Perhaps they may be more strict in their markings knowing the paper was easy this year. MOE may not want to be under fire again this year after last year's fiasco, hence the easy paper but they may resort to more stringent markings. This may eventually affect the overall T score.

Reply to 2010 PSLE Mathematics on Fri, 08 Oct 2010 18:02:23 GMT

mellette — Fri, 08 Oct 2010 18:02:23 GMT

Carrot:
Ca3kids:
[quote=\"mellette\"]Indeed, easiler is better as least they know they have cleared the paper with certain confidence to move on to the next paper.

Mellette, agreed with you. Let us don't concern of how the T-score will affect the result first but for easier paper esp Maths as 2nd day paper, it really help the kids to have confidence to tackle the next coming Science and Higher Chinese papers.

Yesterday I saw my DD keep smiling as at least she is happy that English and Maths paper is not as difficult as the prelim and esp after Maths paper, I can see her confidence level is more up as she saw her answers are mostly correct after discussing with friends and from forum feedback in the web. At least for Maths (One of the most time consuming and tricky paper) had cleared.

Gosh! If first 2 paper were to be easy for these above average kids... :!: :!: wondering science would be tough or not lei? I heard this is thr first batch science weightage diff from previous year ...truth or not? :? :?[/quote]
As mentioned by some parents earlier, weightage is the same. What I understand is that the Science paper content will be narrower and the questions will be fewer but tougher. They are expecting more in depth and precise answers.. :roll: :roll:

Reply to 2010 PSLE Mathematics on Fri, 08 Oct 2010 15:15:17 GMT

blessedami — Fri, 08 Oct 2010 15:15:17 GMT

ekanil:
Hi , my son says that the pattern is as follows :

1 ---------------------12(rods needed to make a cube)
2 ------------------- 20
3 ------------------- 28
4 ------------------- 33
5 -------------------- 41
6 -------------------- 46

Thanks,
Yes, I got the first number in the series wrong, regardless of which the answer is 782.

Reply to 2010 PSLE Mathematics on Fri, 08 Oct 2010 14:37:05 GMT

CVPSMASH — Fri, 08 Oct 2010 14:37:05 GMT

the kiasu student:
What do you think of the Math 2010 PSLE?

Okayokay.