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238 GCE ‘A’ Level Chemistry Paper 3 scripts from 2017 examination stolen from courier van

March 3, 2018 by Maths Statistics Science Tutor

03 March 2018

A parcel containing 238 GCE ‘A’ Level Chemistry Paper 3 scripts from last year’s examinations held in Singapore were stolen from a courier van in Britain.

The Singapore Examinations and Assessment Board (SEAB) said the affected students were given final grades based on their performance in other parts of the Chemistry exam as well as their cohort’s overall performance. The students also have the option to resit Paper 3.

A Nanyang Junior College student who left one-third of his Chemistry Paper 3 blank is cheering the fact that his answer script was stolen and he ended up with an A.

However, some students are unhappy with the overall grade they received and are considering resitting the paper.

Chemistry Paper 3 carries 35 per cent of the marks for the subject.

Invention of a graphene-oxide sieve that can filter dissolved ionic compounds from water

April 6, 2017 by Maths Statistics Science Tutor

06 April 2017

A team led by Dr Rahul Raveendran-Nair from the University of Manchester in the United Kingdom has invented a graphene-oxide membrane that can filter salts from a solution like seawater.

In the past, membranes could only sieve out large particles from water, but fails at stopping the flow of dissolved ionic compounds.

The Manchester team built walls of epoxy resin on a graphene oxide membrane, preventing the membrane from swelling up under water and thus enabling the membrane pores to trap dissolved salt ions.

By precisely controlling the pore size in the membrane, holes can be made tiny enough to filter out all common salts from seawater whilst allowing pure water to pass through.

About Myself

I am a private tutor specializing in Mathematics tuition and Statistics tuition for Junior College and Undergraduate levels.  
 
I also tutor Physics and Chemistry for Junior College and Secondary School levels.
 
 
Contact Information  
-- H/P: 9724-0163 (Mr Ng)  
-- Email: ngejaysuss@gmail.com  
 
Academic Qualifications  
-- Ph.D. in Mathematics, National University of Singapore (2011)  
-- B.Sc. First Class Honours in Mathematics, National University of Singapore (2002)

Student Testimonial

A testimonial from my student, Rui En, whom I tutored for five years from 2011 to 2016:  
 

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We are proud to announce that we are now collaborating with The Maths Lab (Singapore). We will be working closely with them and pooling our materials and resources to bring you an engaging and productive maths tutoring experience!



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This site was last updated: 6th March 2023

 
 

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ngejaysuss@gmail.com

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9724-0163 (Mr Ng)

Academic Qualifications

Ph.D. in Mathematics;
B.Sc. First Class Honours in Mathematics

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