(Photo Credit:** Jeff Keen**)

I love to use everyday life examples to teach Math Concepts, it's more interesting to me and my students.

Today, I'm going to use the concept of 'See-Saw' to share with you on **'How to Translate a "Proportion Statement" Into an Equation'**

At the end of this post, you will be able to translate all types of statement (be it inversely proportion or direct proportion) into an equation (some called it a formula)

**Direct Proportion statement:**

You need to first understand what's Direct Proportion (Read all about it here)

Let's look at an example: Given **y is directly proportional to [pmath]{x^2}[/pmath]**, write an equation connecting x, y and a constant k.

So, in simple terms, when y increases, x increases too.

**Inverse (Indirect) Proportion statement:**

Given **y is inversely proportional to [pmath]{x+2}[/pmath]**, write an equation connecting x, y and a constant k.

This is similar to the situation when a **See-Saw is in Up-Down position**. y is up while (x+2) is down. You can also see it from another point: y is in the numerator while (x+2) is in the denominator or when y increases, x decreases.

I hope you have understand the easier way to translate statements into equations for proportionality question.

In my next post, I will be sharing the various approaches in solving a proportionality question and the hint to look out for in order to use the correct approach.

[...] the next post, I will be sharing with you how we can translate a statement into an equation involving proportion. I’m also going to highlight the ‘tricky’ proportion question in 2008 GCE O Level [...]

hi!

i am a malaysian student and i just started to learn this chapter.

i love your post and i can understand it more.

i hope that u can give more tips on how to do this.

i also hope that we can keep-in-touch by e-mail in future.

thanks.

Reply