singaporeolevelmaths

E-Maths: Problems on Compound Interest

Ai Ling — Wed, 09 May 2012 06:54:07 +0000

Formula to calculate total amount in a compound interest question is provided in GCE O-Level E-Maths examinations so students don’t have to memorise.

It is therefore important for students to know how to use the compound interest formula.

Notice in these two questions, the frequency of compounding affects the value of r and n so it affects the total amount as well.

I always share with my students to put themselves in the shoes of a banker who helps their client to grow their money. The frequency of compounding is just like the frequency they meet their client and at each meeting they need to inform how much rate their money has grown based on the frequency of compound.

A-Maths: Differentiation Techniques 101 [video]

Ai Ling — Wed, 28 Mar 2012 05:55:19 +0000

In this video, I use three examples to show the usage of the three differentiation techniques.

Chain rule
Product rule
Quotient rule

You should be able to understand when and how to use each of the rule.

Length of video = 7 min

Click here for the direct link to the video.

Do leave me a comment for any related questions.

I have also created a video to show how I solve a question on ‘Finding stationary value’. It is available here. [Length of video = 6 min]

A-Maths: Differentiation Basics 101 [video]

Ai Ling — Thu, 15 Mar 2012 08:42:51 +0000

In this video, I discuss about the basics of how to differentiate constant, x term and x^2 term.

Length of video: 4 minutes.

Click here for direct link.