1. ## Re: tuition assignments

Originally Posted by allenleonhart
its not wrong to say its a lie lar. more like...

remember the early days when ppl ask u, what happens if u throw a stone and a paper into water. u will say paper floats stone sink, cause paper heavier. then u realise its not. and u move on to other stuff.

same for chem and physics in a way. what we learn in primary sec sch, all teach u the raw basics. enough for u to live life, not enough for u to excel. physics i can say that for sure. if we were to use newton's laws of motion of very fast objects, it will screw up. but for daily purposes, its sufficient.

i think math is the only thing that is constantly not a lie. kudos to math then
Yes, thats partly my point. For the early stages, much of what is learnt is generalisation. The exceptions that is learnt later more of completes the picture.

Its like kids always picturing the solar system to be made up of planets in their nice circular orbits, then learning later that sometimes the orbits are not that perfect.

As for maths, yah, I also can't think of any "lie" so to speak.

2. ## Re: tuition assignments

Originally Posted by Limsgp
It's like in the sec sch, there's oni Black and White..

Then in JC, suddenly you realise that there is something called Grey..

And then, in Uni.. there's actually different shades of grey.....

A classic example would be Metals and Non-metal behavior..

Sometimes, I hesitate when explaining concepts to students.. Like Metal + non-metal = Ionic, Non-metal+Non-metal = covalent.. So I tell them, this will be true for your O levels.. For the truth.. wait till you reach there (JC) then learn.

Sometimes, to let student remember.. it may be necessary for the sec sch teacher to tell certain "lies".. Like, Inert gases never form compounds bcoz they are.. well.. "inert".. If add too many exceptions, it'll oni make them confused and forget..

But, after passing their O levels with aces.. in JC they'll realise that inert gases form all kinds of compounds under specific conditions and with specific "partners"..

Well.. that's just part and parcel of the study route isn't it.. B&W to B&W+Grey, different shades of grey.. and then colours.........
Sounds so familar!

Unfortunately, the hands are sometimes tied by the syllabus and exam requirements, which requires students show understanding of the inertness of noble gases. You tell them that noble gases are actually not inert....you might induce more confusion and frustration among students.

3. ## Re: tuition assignments

Originally Posted by ahbian
Yes, thats partly my point. For the early stages, much of what is learnt is generalisation. The exceptions that is learnt later more of completes the picture.

Its like kids always picturing the solar system to be made up of planets in their nice circular orbits, then learning later that sometimes the orbits are not that perfect.

As for maths, yah, I also can't think of any "lie" so to speak.
oh yes. u get lies when u take them into physics. sometimes i laugh whenever my teachers guiding us for olympiad training take ridiculous short cuts. things like dx/dt u can bring it around like fractions and play like free. according to him this is ok if u dun take limits.

ahahaha so funny

4. ## Re: tuition assignments

Originally Posted by allenleonhart
oh yes. u get lies when u take them into physics. sometimes i laugh whenever my teachers guiding us for olympiad training take ridiculous short cuts. things like dx/dt u can bring it around like fractions and play like free. according to him this is ok if u dun take limits.

ahahaha so funny
Well, the cover backside speak we use is "this is true within certain constrains".

5. ## Re: tuition assignments

Originally Posted by ahbian
Well, the cover backside speak we use is "this is true within certain constrains".
i'm always amazed at how my teachers can go around so sneakily abt math

6. ## Re: tuition assignments

Originally Posted by ahbian
Well, the cover backside speak we use is "this is true within certain constrains".
Originally Posted by allenleonhart
i'm always amazed at how my teachers can go around so sneakily abt math
You should be more amazed at how many students would selectively filter out that phrase "this is true within certain constrains" and apply what is taught to Everything; then claim, "you got say meh?"

Like I said, the tendency to learn through generalizations run deep.

7. ## Re: tuition assignments

Originally Posted by ahbian
You should be more amazed at how many students would selectively filter out that phrase "this is true within certain constrains" and apply what is taught to Everything; then claim, "you got say meh?"

Like I said, the tendency to learn through generalizations run deep.
oh yea. al+cl shld be ionic with covalent i think. but i always see ppl just say ionic reason being metal non metal. and in jc too

8. ## Re: tuition assignments

Originally Posted by allenleonhart
oh yea. al+cl shld be ionic with covalent i think. but i always see ppl just say ionic reason being metal non metal. and in jc too
Al+Cl covalent? Why???

9. ## Re: tuition assignments

Originally Posted by ahbian
Its like kids always picturing the solar system to be made up of planets in their nice circular orbits, then learning later that sometimes the orbits are not that perfect.
even adults learn.. they learn that Pluto is not the last planet in the solar system..

10. ## Re: tuition assignments

Originally Posted by allenleonhart
oh yea. al+cl shld be ionic with covalent i think. but i always see ppl just say ionic reason being metal non metal. and in jc too
Originally Posted by qwerty628
Al+Cl covalent? Why???

that's it ALH.. you have created confusion for the student..............

11. ## Re: tuition assignments

Originally Posted by allenleonhart
oh yea. al+cl shld be ionic with covalent i think. but i always see ppl just say ionic reason being metal non metal. and in jc too
Originally Posted by qwerty628
Al+Cl covalent? Why???
Which is why questions set in secondary school consciously avoid asking about AlCl, cause that would be unfair to the students.

Anyway, to complicate matters, the extent of its ionic/covalent nature depends on the temperature too.

By the way, aren't you both suppose to be in classes at this moment?

12. ## Re: tuition assignments

Originally Posted by Limsgp
even adults learn.. they learn that Pluto is not the last planet in the solar system..
You mean there's another planet now?

13. ## Re: tuition assignments

Originally Posted by ahbian
Which is why questions set in secondary school consciously avoid asking about AlCl, cause that would be unfair to the students.

Anyway, to complicate matters, the extent of its ionic/covalent nature depends on the temperature too.

By the way, aren't you both suppose to be in classes at this moment?
Youth day. I just woke up. Shiok ah. Hahaha

14. ## Re: tuition assignments

Originally Posted by Limsgp
that's it ALH.. you have created confusion for the student..............
And the students would now refute everything the science teacher says, "but I read on the clubsnap hor....."

15. ## Re: tuition assignments

Originally Posted by qwerty628
You mean there's another planet now?
Its no longer classified as a planet.

16. ## Re: tuition assignments

Originally Posted by qwerty628
Al+Cl covalent? Why???
Short answer.. If you're not from RI, RGS or the like.. and is oni interested in getting good grades for the O levels you can forget what he said..

If you're interested to know.. the truth is.. there are man, there are woman, and there are man with woman inclinations.. and there are woman with man inclinations..

And, Man + Woman not necessary have BGR (The general case).. they can be Sisters or Brothers (the exceptional cases)..

so it depends on how "MAN" is the man, and how "WOMAN" is the woman.........

okie.. end of story.. probably the Pro can explain better.. I'm oni part-time... heehee..

17. ## Re: tuition assignments

Originally Posted by qwerty628
You mean there's another planet now?
there was......

Originally Posted by ahbian
Its no longer classified as a planet.
okie.. they learnt.. and learn again.............

18. ## Re: tuition assignments

Originally Posted by ahbian
Which is why questions set in secondary school consciously avoid asking about AlCl, cause that would be unfair to the students.

Anyway, to complicate matters, the extent of its ionic/covalent nature depends on the temperature too.

By the way, aren't you both suppose to be in classes at this moment?
woots i like this lets screw them all up. who said octet is needed to have a stable structure? phosphorus can haev up to 10 valence electrons when making bonds. nitrogen can have 6 when mkaing bonds
GG havoc pls

19. ## Re: tuition assignments

Originally Posted by ahbian
Its no longer classified as a planet.
pluto is a moon

20. ## Re: tuition assignments

anyways. back to topic. aynone wanna be my labrat for 1 lesson or 2? i wanna get some feed back first

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