Psle maths question set wrongly?

last SG · 2008-10-16T21:34:25+00:00

well they have to.....for one or two questions....

FirePig SG

http://1.bp.blogspot.com/_NGNaLTzN5_U/SO7KSGPMV2I/AAAAAAAAAjw/CaSHsV8f6a4/s1600-h/MathsCirclesQ02PSLE08.JPG

I think that in a diagram like this, you can only ask for either the outer perimeter of the shaded figure or the inner perimeter for the shaded figure.

But dont think you can just ask the perimeter of the figure because this is not a 'simple' figure. (There is a hole in the middle.). http://en.wikipedia.org/wiki/Simply_connected

Other interesting PSLE Maths and Science questions can be found at: http://www.psle2008.blogspot.com/

Ahm97sic SG

Hi Firepig,

There is nothing wrong with this PSLE Maths question.

It is clearly stated that it requires students to find the perimeter of the shaded figure ie the total length all round the shaded figure ie the circumference of the big circle and the 2 bigger arcs which form half of the circumference of the big circle and the 2 smaller arcs form the circumference of the small circle.

Hence, the perimeter of the shaded figure

= 1.5 x circumference of the big circle + circumference of the small circle.

Thank you for your kind attention.

Regards,

ahm97sic

Thecar SG

This year paper every pupil find it hard , including me as a student. I didn't have enough time to tackle the other questions as there was too little time given.

skythewood SG

http://1.bp.blogspot.com/_NGNaLTzN5_U/SO7KSGPMV2I/AAAAAAAAAjw/CaSHsV8f6a4/s1600-h/MathsCirclesQ02PSLE08.JPG

I think that in a diagram like this, you can only ask for either the outer perimeter of the shaded figure or the inner perimeter for the shaded figure.

But dont think you can just ask the perimeter of the figure because this is not a 'simple' figure. (There is a hole in the middle.). http://en.wikipedia.org/wiki/Simply_connected

Other interesting PSLE Maths and Science questions can be found at: http://www.psle2008.blogspot.com/

The question and answer you posted is ok, don't see anything wrong. don't think p6 students are idiot, and they can verify the question if they feel the need to.

skythewood SG

This year paper every pupil find it hard , including me as a student. I didn't have enough time to tackle the other questions as there was too little time given.

it's very hard to rank the students in terms of how good they are. the easiest way is to set alot of question, and see who is better by seeing who is able to finish more.

Only the very best students can finish all correctly, but those that did not finish all should be fine too.

TIB1049L SG

Well, I still rmb that year I took my PSLE one of the Maths question was set wrongly. Everybody was awarded marks for that question =X

skythewood SG

Well, I still rmb that year I took my PSLE one of the Maths question was set wrongly. Everybody was awarded marks for that question =X

PSLE major exam, go through lots of proofreading, still can set wrong... sux lah

youyayu SG

ai ya.. nowadays ppl complain all is hard.. and want good marks HAHAAAA

Jrz SG

this yr many say very hard maths paper... ;/

hiphop2009 SG

haha.

i realise another primary school student surf this forum!

TDurden SG

this yr many say very hard maths paper... ;/

How come every year people say this?

SBS7484P SG

Well, I still rmb that year I took my PSLE one of the Maths question was set wrongly. Everybody was awarded marks for that question =X

that was 2005 right. :P

i was in that year :D

TIB1049L SG

that was 2005 right. :P

i was in that year :D

Yeah. Hi-Five bud!

Jrz SG

Its no use having free marks for that question..

everybody gets the free marks, so its just as much as having no advantage.. lol.

[email protected]_F3V3R SG

this yr many say very hard maths paper... ;/

sort of agree... ...

btw ... it's not always that ppl set wrongly the qn lah...

even if they set it wrongly, they will had told the ppl on de news like my batch... the lucky batch haha

still remember the mcq give away 2 mark.

but no matyter how hard the paper is, they will go and moderate the paper and set a limit quota of passes and a's... every year same one lah...

Thecar SG

haha.

i realise another primary school student surf this forum!

Yah i am a student from poi ching primary school.

limpper SG

lol, been ages since i took PSLE.

SBS7484P SG

Yeah. Hi-Five bud!

its about the how many squares in a rectangle?

oh no. i rmb it had sth to do with a farm.. they ask a qn about stuff on a farm. hahha

cApitaland SG

aiyo. every year also say hard..

mightygirl SG

Do they announce out if the questions are set wrongly?