Answer and explanation for the Co-Sci qn.

Hi Sarah

the answer for the Earth and Mars qn. is 'the Earth and Mars attract',

because

'The planets are too far apart from one another for their gravitational attractions

to be very noticeable. The earth does attract Mars (and vice versa), but so

weakly that this gravitational force is nearly impossible to detect.'

I am still thinking of the 'atom 18 and 19' question. Will let you know once I have a solution for it.

There are practice papers for IGCSE math at this website: http://www.xtremepapers.com/. When we have finished going through those given by your school, we'll try the questions from this website. They also have for other subjects. You can take a look at them if you need further practice for other subjects.

Happy studying!

Secondary School Posting for PSLE students

Posting of Secondary School is out tomorrow.
All the best for PSLE students!

Math Group Tuition @ Farrer Park MRT (City Square Mall)

New classes for 2012

Sec 1 and 2 Math
Small group, max 10 students. Limited spaces, hurry! 2 classes left
Tuesdays 3.30-5.30pm or Tuesdays 5.30-7.30pm
Near Farrer Park MRT stn, conducive environment.
$150/mth
Affordable and GOOD
Teaching materials provided.
We welcome referrals, referral fees apply.
For further enquiries or registration, kindly post on my blog.
I will reply asap.

Release of GCE N'level results

GCE N'level results were released yesterday.
My student, scored A2 for her combined science (phy/chem). Felt happy for her, she improved from a C to A2.
To reward her, I'm bringing her to the movies, Mission Impossible.
Well done!

Re: Math Questions for Joanne

Hi Joanne
Qn.4 is wrong bcos it should be reduced to the lowest terms. The correct ans. should be -1/2.
The rest of the ans. are correct, very good!

I will go thru' qns. 2 and 5 with you tonight.
See you!

Math Questions for Joanne

Hi Joanne,
You should be able to complete these questions within 15minutes. Post your answers after you have completed them, by today.

1) Solve (2x +1)(x-6) = 0
2) Solve 6x^2 = 6

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O'level 2011 Amath Paper 1 & 2 suggested answers

Paper 1
1)     x < 1
2)     a = 12, b = 3
3)     4 or -4 (rejected)
4)     2.42 or 3.86
5)     k = 0.75
6)     x = 4, y = 5.5