My IGMath Rulebook

My IGMath Rulebook

All your IGCSE Mathematics learning work summarised for you! My IGMath Rulebook is available in a se

Operating as usual


When will I ever use the Pythagorean Theorem in my life?
Actually, quite often. Yip, even in sports.
Enjoy this short video "The Science in NFL Football" which demonstrates how the theorem in used in football:

Image from MyIGmath rulebook 3.


When faced with a statistics question that asks for range or inter-quartile range(IQR), the first thing to do is to order your data in ascending order(smallest to largest).
Now think of it as a long slab of of chocolate that you want you to divide into 4 equal parts.
The 4 equal parts are called quartiles and the places where you cut the chocolate are called Q1, Q2 and Q3.
Q2 is also called the median(the middle).
Sometimes a Q-value may lay between two numbers. Simply add the 2 numbers and divide the answer by 2(calculate the average).
Now identify the Q-values for your set of data.
Remember, for a set of data with an odd number of values: once you identified the Q2 value, it can't be used again. So exclude the Q2 when determining the Q1 and Q3 value.
For a data set with an even number of values: the Q2 will be the average between the middle two numbers. Therefore the 2 middle numbers can be used again to determine the Q1 and Q3 values.

To calculate range we use the formula: Range=max-min.
To calculate IQR we use the formula: IQR=Q3-Q1.
The 5 Number summary includes the minimum, Q1,Q2,Q3 and maximum value.
You will use the 5 Number Summary to draw a box-and-whisker plot.


I do believe that everyone can do math, but many students, children to adults, struggle with math anxiety. This interferes with their working memory resources and disrupts their mathematical learning.
Fortunately it is something that you can overcome. This article and video gives you some ideas to help you overcome your anxiety.
My favorite tip to students is to improve and broaden your knowledge of maths. Knowledge is power. Knowing your rules, laws and formulae makes a huge difference!
Your confidence will improve and you will fell less anxious about the subject.

Dealing with Math Anxiety Tips on dealing with Math anxiety


Easy TIP: How to increase or decrease a quantity by a given ratio.

Remember, it is always new value : old value


Working with integers/directed numbers is extremely important in all areas of math. One of the problems students struggle with frequently, is distinguishing between the rules for adding and subtracting, vs the rules for multiplying and dividing with integers.
Make sure you know these rules!

From rulebook 1:Numbers

Past Papers & Mark Schemes 19/07/2021

Where can I find IGCSE math past papers and mark schemes?
Here are some of my favourite links:

Past Papers & Mark Schemes CIE IGCSE Maths (Extended): Past Papers Home > CIE IGCSE Maths (Extended) > Past Papers Past papers & mark schemes for the CIE IGCSE Maths (Extended) 0580 / 0980 exam. Which papers should I answer?


Get your FREE sample booklet at [email protected] or whats app your email address to 0824954649.


You have been waiting for this! IGCSE Mathematics rules and laws summarised for you!
Achieve excellent math results with 4 affordable rulebooks in pdf format. Over 220 pages of colourful and easy to read and understand notes.
Price R150 per book or R500 for all 4.

Want your school to be the top-listed School/college in Cape Town?

Click here to claim your Sponsored Listing.





Cape Town
Other Education in Cape Town (show all)
Hydro Park, Hydro Street, Stikland
Cape Town, 7537 provides contextual training in Project Management. Contextual training mean

help2read help2read
Unit B13, Century Square, Heron Crescent
Cape Town, 7411

Help2read is a registered non-profit organisation working through a volunteer workforce in primary s

Shine Literacy Shine Literacy
Zonnebloem College Estate, Cambridge Street, Zonnebloem
Cape Town, 7925

Shine Literacy is a non-profit organisation that seeks to create a culture of reading in South Africa

GetSmarter GetSmarter
358 Victoria Road
Cape Town, 7925

We improve lives through better education.

City Bowl, Cape Town Toastmasters Club City Bowl, Cape Town Toastmasters Club
Central Library, Cnr Parade And Darling Streets
Cape Town, 8001

If you want to speak better or lead better, you’re at the right place!

iLite iLite
19 Kawana Cresent, Sunningdale
Cape Town, 7441

Moodle Installation, Custom Development and Content Development

4 Loop Street
Cape Town, 8000

Creating an environment where Quality Health Care and Education is available to all South Africans!

Heavy Chef Heavy Chef
17 Dock Road
Cape Town, 7925

Heavy Chef is a community-driven organisation for 'people that do.'

Area 51
Cape Town, 7441

R.A.S.S is a movement for all those that choose to share knowledge without holding back or fear.we a

CA Connect CA Connect
3rd Floor, Deneb House, 368 Main Road
Cape Town, 7925

CA Connect with Milpark Education provides the FIRST & ONLY FULLY ONLINE SAICA-accredited path to CA

IkamvaYouth SA IkamvaYouth SA
IkamvaHouse 47 Westminster Road
Cape Town, 7925

A by-youth for-youth NPO, enabling disadvantaged youth to pull themselves & each other out of poverty

Wynberg Cricket Wynberg Cricket
Wynberg Boys' High & Junior Schools
Cape Town, 7800

Celebrating the rich heritage of Cricket at the Wynberg Boys' Schools