Hi G Tan & Yum Yum


Cell walls are found in plants, bacteria, fungi, algae, and some archaea (from Wiki)
The key word is "definitely", Cell X could have been a fungi cell.

Thank you.

Hi G Tan


Chloroplasts are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis (from Wiki)
Statement B says Cell X is definitely a plant cell which is a false statement as it does not has chloroplasts…
Please explain why answer cannot be 2. Sorry I am just as confused and can you help by explaining why Cell X is definitely a plant cell?

Many thanks.

Hi, maybe you can join the PSLE 2012 PSLE discussion and strategy thread? Think there are some very good advice given by others. I am struggling with my child (P6 too this year) so am not in the position to give any advice.

All the best!

Had reunion dinner with hubby’s family yesterday. Having reunion with my parents tonight. Mother in law will be home alone so my daddy asked her to join us.


I was busy in the kitchen and mil came over and started bossing me about how I should "do" my chores. So I am here now shufing the net and leaving the chores to her now since she enjoys doing them…

Yes looking forward to reunion dinner whereby we will be having steamboat. Yummy.

It is also a time to gather and catch up in everyones life as we have been so busy the past year. Me and hubby was just saying that time passes so fast and we should cherish those who are dear to us and for those we dislike, learn to forgive and love.

A new year, a new beginning, hopefully we can all just forget the old grudges and move on.

Happy Chinese New Year everyone.

Dear all,


The question is about four children involving in some activities. namely:
a boy running (Tom), a boy sleeping(Jack), a boy doing homework (Peter)and a toddler walking (Matthew).

A graph shows the heart beat of the four and requires to identify the heartbeat rate of the children involving in these activities.

The most suitable available answer is whereby Matthew has the highest heartbeat rate ,followed by Tom, Peter and jack.

The reasoning is: toddler has a higher heartbeat rate than a boy.

The other answers will not qualify because eventhough Tom should have the highest heartbeat as he was running, the only available answer there whereby Tom has the highest heartbeat was in this order : Tom, Matthew,Jack ,Peter which is not right as jack was sleeping so his heartbeat should not be higher than Peter who was doing his homework. (Unless Jack was having a nightmare but we should simplify and leave it that he really is resting and not confuse ourselves further)

Overall I feel that the question requires some level of understanding of the text and prompt us to think deeper. I find the question silly similarly as in I find many other questions silly too. However, questions which I find silly, my son could explain to me otherwise.

Conclusion on my part, yes this question is "silly" but think we will be seeing more "silly" questions coming our way.

phtthp:

this book sounds a bit controversial ...


hi G Tan,

from this book, may i know which area or what are some qns that sound silly & ridiculous ?

hi annamom,
did yr friend happen to mention any example of what sort of very good questions set ?

Thank you, to both important feedback.

Yes, i did receive feedback that one has to be careful, thread cautiously with assorted Science assessment books flooding the market, as some answers inside might be wrong. But then, i'm not sure which book contain unacceptable answers for psle.

Sure, will find out from him on his next visit and update here. I did not ask him previously as I do trust his judgement.

A friend of mine recommended this title.

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Hi Janet

I bought a lot of assessment for my boy too and when his tutor wants me to get this title I asked if he can make do with those which I bought but he strongly recommends this book too.

He mention that all assessments have it's flaws but he feels that overall this assessment book has some very good questions set.

All the best.

Chenonceau:

Annamom ... kekekekeke... yeah, one needs the scores of all the students who took the exam to calculate SD and the average. Your school gives these figures? Lucky you!!


Is your child in P5? Mine is in P5. No one gave us these numbers leh...

Yes, he will be in P6 next year. Think different schools do things differently. My nephew's school has position ranking but not my son's school.

I use the information to gauge if my son is above or below average among his peers as well as get an idea if the paper was tough or simple.

Chenonceau:

To calculate SD


(1) Calculate average score for all people who took exam
(2) Take each individual student's score MINUS the average
(3) Calculate the square of (each individual student's score MINUS the average)
(4) Sum up the squares in Step 3
(5) Divide the sum of squares in Step 4 by the # of people who took exam
(6) Calculate the square root of the answer in Step 5

Wow, thank you .this will be a complicating exercise for me if I have to work out the SD myself. :slapshead: