2020 PSLE Discussions and Strategies(for those born in 2008)

[Apollo199999999]

sywtj\" post_id=\"1997405\" time=\"1601779258\" user_id=\"188688:

Chloeeeeee\" post_id=\"1997403\" time=\"1601777234\" user_id=\"188699:

There was a circles question in the psle something about circles and finding the perimeter of the shaded part? Does anybody have an ans to this? Thanks

i remember b) to be 1156.2cm2

I thought it was 1156.5

[Fastblade]

Apollo199999999\" post_id=\"1997419\" time=\"1601786961\" user_id=\"188717:

sywtj\" post_id=\"1997405\" time=\"1601779258\" user_id=\"188688:

[quote=Chloeeeeee post_id=1997403 time=1601777234 user_id=188699]There was a circles question in the psle something about circles and finding the perimeter of the shaded part? Does anybody have an ans to this? Thanks

i remember b) to be 1156.2cm2

I thought it was 1156.5[/quote]

It is 1156.5

[stick]

for the ring question I put

1.33 or 32cm
2. 24 (confirm wrong) :

[Apollo199999999]

[youtube=][/youtube]

stick\" post_id=\"1997423\" time=\"1601790939\" user_id=\"188729:

for the ring question I put
1.33 or 32cm
2. 24 (confirm wrong) :

Ring Qn is a. 30cm and b. 28

[xiaomingiconic]

Apollo199999999\" post_id=\"1997404\" time=\"1601777431\" user_id=\"188717:

xiaomingiconic\" post_id=\"1997391\" time=\"1601771330\" user_id=\"188698:

[quote=Apollo199999999 post_id=1997388 time=1601769245 user_id=188717]:lightrod:

Pls help

uhhh i think the answer is 64 as many people say 64 but i also don’t know because i left it blank 🤡

No like what was the question[/quote]ohh, the qn was:
lucy had an equal number of gold and silver stars. she gave 26 gold stars and 14 gold stars to maggie and the rest to nick. for every 1 gold starnick got, he got 3 silver stars. how many stars did lucy have at first or how many did lucy have each (i can’t remember what they asked for)

[_E.022613K_]

xiaomingiconic\" post_id=\"1997436\" time=\"1601795123\" user_id=\"188698:

Apollo199999999\" post_id=\"1997404\" time=\"1601777431\" user_id=\"188717:

[quote=xiaomingiconic post_id=1997391 time=1601771330 user_id=188698]

uhhh i think the answer is 64 as many people say 64 but i also don’t know because i left it blank 🤡

No like what was the question

ohh, the qn was:
Lucy had an EQUAL NUMBER OF GOLD AND SILVER STARS. She gave 26 gold stars and 14 silver stars to maggie and the rest to Nick. for every 1 gold star Nick got, he got 3 silver stars. How many stars did Lucy have at first?[/quote]The correct answer should be 64.
Explanation:
26-14=12 → there was (1U + 12) silver stars and (1U) gold stars.
3-1=2 → difference in each
12÷2=6 → no. of groups
6×1+26= 32 → no.of gold stars in total
32×2=64 → Total no. Of stars
CHECK:
3×6+14=32 → no.of silver stars in total

[tutormum]

xiaomingiconic\" post_id=\"1997237\" time=\"1601644245\" user_id=\"188698:

yummers\" post_id=\"1997015\" time=\"1601616869\" user_id=\"188678:

My friend said that the question asked for possible numbers, but I only put 90. He could be wrong, but can I still get one mark if that is the case?

idk, maybe he could because his method should've been correct if he got 90 but the answer is actually 89 and 90 because in one group of stars and hearts there are 3 stars and 2 hearts and the heart is last, and they said that there were 135 stars, so yeah 90 is right but then there also could be 89 too, because even if you minus that last heart you'd still get 135 stars and so you're supposed to write 89 and 90
plus they said what are the possible answerS ... i put 90 only and now i know my mistake

I understood that the question was \"Find the possible numbers of hearts in that piece of tape.\" Most students would use number pattern to solve and get 90 while only a handful would know that the last heart is not necessary to be included in the tape. This is a trick question but IMHO I believe that giving 90 as the only answer would get half the mark to be fair to majority of the students cos at least they got one of the possible number correct.

[tutormum]

Fastblade\" post_id=\"1997301\" time=\"1601691783\" user_id=\"188704:

It is definitely not 91, cos they started with Star so the pattern must follow accordingly, and not like the tuition. So it is not 91

I agree cos it's not fair for the students as the question is rather ambiguous to begin with. There is no mentioning that the tape can be cut from different points and it would be assumed that the starting point of the tape is what is shown in the diagram i.e. from S S H...... Answer would be 89 and 90, setting those students who were able to deduce 89 as another possible answer apart. That's how they differentiate the A and A* students.

[P1 mummy]

Astudentwhoanswersquestions\" post_id=\"1997287\" time=\"1601686725\" user_id=\"188683:

678Yess\" post_id=\"1997280\" time=\"1601678787\" user_id=\"7364:

When so many people said that maths paper is easy... it worried me. As tolerance towards carelessness will be zero... which is not good for those that were strong in the subject but, not careful. I wondered, which subject is the will be the intentional differentiation subject ... I hope it will not an disadvantage to my ds.

I was quite careless with paper 1 and lost 4 marks on paper 1 and in paper 2, I lost 2. :gloomy:

Sounds like you lost that A* already. Easy paper could be as high as 99 or full marks for A*. As they need to limit the A* awarded. No room for carelessness.

[phtthp]

tutormum\" post_id=\"1997462\" time=\"1601815965\" user_id=\"12573:

Fastblade\" post_id=\"1997301\" time=\"1601691783\" user_id=\"188704:

It is definitely not 91, cos they started with Star so the pattern must follow accordingly, and not like the tuition. So it is not 91

I agree cos it's not fair for the students as the question is rather ambiguous to begin with. There is no mentioning that the tape can be cut from different points and it would be assumed that the starting point of the tape is what is shown in the diagram i.e. from S S H...... Answer would be 89 and 90, setting those students who were able to deduce 89 as another possible answer apart. That's how they differentiate the A and A* students.

Yes, agree with Fastblade and tutormom.

In fact, during PSLE Maths tense exam atmosphere, if student can think of 89, apart from 90, is very, very good already.

However, this being a 2 mark question, may not separate A from an A * student,
unless it is a heavy weighted 5 marks question,

because
2 marks difference, is too small, in that

If you write down 90 one answer, get 1 mark.

If write down 89 and 90, get 2 marks (full marks)