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All content on this site has been written by Andrew Chambers (MSc. Mathematics, IB Maths Examiner, IB Maths Content Curator).

Downloads: 1,000,000+ (all sites)

Views: 10,000,000+ (all sites)

Below are some user comments:


“Excellent worksheets”

“I love to see Python in the enrichment section”

“Excellent quality of resources”

“This will save me hundreds of hours of work!”

“Really amazing Paper 3 resources – thanks.”

“I absolutely love your website!.”

“Very easy to navigate and user friendly”

“Consistently high quality”


Welcome to intermathematics!

On this site you will find 2500+ pages of pdf and flipchart content to help teachers at international schools around the world.

The content includes:

1. Over 160 original pdf worksheets designed to cover the Analysis and Applications (AA) SL and HL syllabus and the Applications and Interpretations (AI) SL syllabus.  Each worksheet is designed to last between 40 minutes and 1 hour and combines skills practice and past paper style questions. These have fully typed up worked solutions.  (Over 1000 pages of content).

2. Twenty four Paper 3 HL investigations for AA and AI.  Each investigation is designed to last between 30 minutes and 60 minutes.  Fully worked solutions are also provided.    (Over 200 pages of content).

3. An  Exploration Guide to introduce students to the essentials behind getting an excellent mark on their exploration coursework. A Modeling for Explorations Guide to support the use of non-calculator regression techniques and use of technology in modeling tasks. A Statistics for Explorations Guide  to provide a large range of statistical methods presented in the form of mini coursework investigations. (Over 150 pages of content)

4. Mock exam papers: I have made a Paper 1 and Paper 2 SL (both 80 marks) and Paper 1 and Paper 2 HL full mock exam paper (both 110 marks) for the new syllabus. These are designed to look and feel like the real exam papers.

5. Enrichment and engaging classroom activities, such as maths club activities, enriching investigations tasks, coding with Python guides, TOK in maths and more.

6. Desmos activities  I’ve produced a large number of technology rich activities which utilize the full capabilities of Desmos – such as in statistics tasks, modeling activities and in calculus.

7. Treasure hunts and Quizzes.  I’ve uploaded 35 flip-chart quizzes specifically covering the IGCSE 0580 syllabus – each with around 20 pages and worked solutions to exam questions.  There are also an ever-expanding number of treasure hunt activities for IB maths.

8.  Full worked solution notes for the IGCSE 0580 Core, the IGCSE 0580 Extended, the IGCSE 0606 Additional, the IB SL Analysis and the IB HL Analysis syllabus.    In both pdf and flipchart format these are ideal for class teaching and revision.  Over 1000+ pages of content here alone! 

Below you can scroll down to download some examples of worksheets provided. If you are interested in membership of this site then please click here to join.  I’ll be happy to help with any questions!

Sequences teaching pack (47 page pdf):

Introduction pack (45 page pdf)

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Eight Paper 3 Investigations ( 20 page pdf)

Statistical investigation (6 page pdf)

Modelling with quadratics (4 page pdf)

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Exploring Julia Sets (4 page pdf)

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Binomials treasure hunt (8 page pdf)

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Maths and TOK (14 page pdf)

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Where to build a hospital? (5 page pdf)

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Circle rolling along a curve (3 page pdf)

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You can download these files here:

File Last Modified Download
CODE BREAKING COMPETITION PACK: 2023 FOBISISA (with answers) 2023/09/22 Download
Maths TOK Support 2021/11/05 Download
Applications Where to build a hospital 2021/10/30 Download
Binomials treasure hunt 2021/11/04 Download
Bridge Building 2021/10/03 Download
Julia Sets 2021/09/27 Download
Introduction pack 2021/09/26 Download
Sequences teaching pack 2021/09/26 Download
Eight Paper 3 investigations 2021/09/26 Download
Ball rolling on a cosine curve investigation 2021/09/22 Download
Statistical investigation with Desmos 2021/08/28 Download
Exploration Guide 2021/08/17 Download

New content is also being added all the time – content added in the last few weeks includes:

7 weeks ago:  A normal distribution investigation, a speed differentiation challenge, a binomial expansion treasure hunt, a normal distribution treasure hunt, a guess and check integration activity, using Python for maths exploration and more.

6 weeks ago:  A Paper 1 SL (80 marks) full mock exam paper,  a Paper 1 HL (110 marks) full mock exam paper.   Both of these are designed to look and feel like a real past paper.  Perfect for extra revision!  Also a 50 page code breaking resource pack for enrichment activities and a Geogebra enrichment activity on Euler’s 9 point circle.

5 weeks ago: A Paper 2 SL (80 marks) full mock exam paper,  a Paper 2 HL (110 marks) full mock exam paper.   Both of these are designed to look and feel like a real past paper.  An enrichment sequence investigation designed to last up to one lesson, an enrichment fun with function investigation  also designed to last one full lesson.

4 weeks ago: A functions hunter investigation into odd and even functions, a Benford’s Law activity, a comprehensive radioactive decay lesson including dice data simulation and modelling with Desmos, a volume hunter volume of revolution activity and a pair of in-depth explorations into modelling the motion of a ball rolling on a cosine curve and also on a generalised curve.  

3 weeks ago: A beautiful Julia Set investigation, a modelling investigation comparing hours of sunlight in different countries using trig regression,  an investigation on buying a car with loans, an investigation on savings to buy a yacht,  an Angry Birds quadratics investigation, a bridge building modelling task, adaption of a number of worksheets for Applications SL.

2 weeks ago: Finished off uploading worksheets covering the Applications SL syllabus, uploaded a 14 page TOK in mathematics guide, a 3D printing with Desmos guide and a stocks and shares whole school activity.

1 week ago: Uploaded a Paper 3 exam pack for Applications HL students.  41 pages of typed questions and markshemes.  There are a total of 6 questions worth over 180 marks.  Perfect to prepare students for their Paper 3s in May.

If you are interested in membership of this site then please explore the free content sections in more detail and click here to join.  I’ll be happy to help with any questions!