Hi atutor2001,


Thank you so, so much for your explanations, really appreciate your help!

vidhyalog:

Nebbermind:

I thought the bigger vol of air in X will push the ink to Y? Isn't it (1)? :?

Hi Nebbermind

That's what he answered first and I thought too. But then why is there the word \"immediately\". Because 2 things happen - at first - flask expands - and as air occupies space - the air in the flask will occupy the expanded space there causing the ink to momentary move towards X - before the air in X expands and therefore pushes it to the right.

This reasoning was given by my son when he noticed the answer he wrote was wrong. He then guessed it is because of the word immediately.

I find it quite sad that some questions may trip up children who can understand concepts - but are not so careful. But that is life I guess - you should know the concepts and be super-careful in reading the question.

Hi vidhyalog,

Here's what my son said after he read your post.

\"I feel that it is not necessarily true that the air in the flask will occupy the expanded space, because air does not have a definite volume, e.g. pumping 300 cubic centimetres of air into a 500 cubic centimetres container, the air spreads out to take up the entire space, retaining its volume. Therefore, air outside the flask in the plastic tube does not have to enter the flask to fill up the space. Thus, equal forces from both flasks in this case are pushing the water droplet, so it should not move at all :? That's what i think. Although my initial answer was (1), I am seriously beginning to have doubts.\"

Can someone please help to explain to my son?

:imcool: :?: :scratchhead: :idea:

Thank You!!!!

hmmmmm…GEP if above 80% only need to go for interview; if below, sit for GAT , don’t think there’s any selection test involved.

HCI , may be. But RI, not all GEP students take HCL, so we are not comparing apple to apple. And our school is famous for being extremely strict in marking. I’ve seen markings in ACSP versus ours for the same paper, lets just say if the teachers-in-charge at these top schools are not aware of the differences in marking standards, our kids are at a comparative disadvantage.

You seem very knowledgeable about all aspects of DSA, NMOZ, SMOPS etc, wonder if you know of any kids who had been rejected by the top few schools for DSA due to HCL???


My son is in GEP . Good in all subjects except HCL. Am very worried about next year’s DSA. Went to HCI, RI and ACSI open house , like the first 2 but worried about being pulled down by the HCL portion. Do they strictly look at the total average or individual subject?

Mine is.


I also live around NYPS, may be we are neighbours?!

Hi verykiasu2010,


Is your kid in P5 this year?

I see…thanks much!

mathsparks:

The Risa science talent camp is not part of the dsa process. it is organized by ri and moe ge branch for top science talents Fr the various ge schools.  my boy attended last year's which was shortened to 1 day due to h1n1.  it was during the camp that he realized he prefers ri to nush.  


good luck to all taking the nush selection test tomorrow.

Hi Mathsparks, is this Risa science talent camp that your boy attended meant for P5 or P6? Thanks!

//Moderator's note: Most creative/useful prediction Award


My vote goes to Nanyang Primary.

Reasons:

Son is with Nanyang, P4 GEP.

Nanyang doesn't train the kids for GEP. We have a host of enrichment centres here conducting extra lessons after school, anybody and everybody can join so long as you pay, Lorna Whinston, Han Language etc, etc

P1 to P3 - no stress at all, and not much homework. Friend's girl from Nanhua had \"mo-xie\" in paragraphs, my son only had not more than 4 sentences each time. I was the one that panicked.

My son cried because he didn't achieve his goal for Math CA2 (his fav subject), his math teacher consoled him and called us twice to reassure us that he is a good student, just a little careless. FYI my son is just an average student, not a top scorer.

A friend's girl who just sat for PSLE this year recounted how caring her teachers were before the exams. They were told to relax, not just in words, the teachers brought them to fast food outlets, science centre to de-stress; played games with them; motivated them. Ironically, the stress came from TLL, her TLL teacher told her based on her performance she should target 280+ !! None of the teachers told her that from NYPS.

Mdm Heng was the only principal who stood up and bowed to the audience last year during the GEP parents talk, the audience appreciated and applauded her for that. She practices what she preaches.

Disclaimer:
I am not a parent volunteer, I am not a teacher of the school, I am not a relative of Mdm Heng.