InThinking Subject Sites
Join thousands of IB teachers worldwide and take advantage of our expert advice and readytogo resources. 
Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
Forthcoming Workshops
Mathematical studies SL
IBDP Category 1
Berlin, Germany
24 to 26 August 2018
more info
Mathematics HL
IBDP Category 1
Berlin, Germany
24 to 26 August 2018
more info
Mathematics SL
IBDP Category 1
Berlin, Germany
24 to 26 August 2018
more info
Find all InThinking Workshops at www.inthinking.net
Site Author
Quote of the day
Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.
(Sofia Kovalevskaya, 18501891)
Resources
Textbooks for Mathematics HL and Mathematics SL
Textbooks for Math HL and Math SL. Two textbooks written by Tim Garry and Ibrahim Wazir that are fully revised 2nd editions providing comprehensive coverage for the new 2014 syllabuses. Each textbook comes with an ebook (accessed through a website) containing a complete digital copy of the text along with numerous additional material.
School visits
If you are interested in Tim Garry visiting your school to work with teachers and/or students, please contact us.
Home2Home
The vacation home exchange service for the IB community.
Feel at home when you travel the world.
www.home2homeinthinking.co.uk
Recommendationsmore
I highly recommend any IB Mathematics teacher who is seeking expert guidance on how best to teach either Standard Level or Higher Level Mathematics in today's classroom to subscribe to the InThinking website. It is an invaluable resource for both...
I really like the continuously expanding InThinking Maths HL & SL resources. I always find something useful among the plentiful, practical, wellformatted resources  including notes, assignments, assessments, and interesting student pages. Absolutely...
Great site. Dense with great ideas and useful printable student material. It has added an extra dimension to my teaching and given me several successful plan B options. Well done Tim.
Blogmore
P.o.t.D. 250 Problems
7 May 2018
I started writing problems for my Problem of the Day (P.o.t.D.) section on this site 15 months ago  and there are now 250 problems available... more
Some fun with primes ... and Geogebra
18 January 2018
Prime numbers are fascinating, mysterious and useful. The topic of prime numbers can pop up in a maths lesson at many different ages and ability... more
primitive Pythagorean triples
30 December 2017
Over the years, I’ve got the impression that students are as fascinated with Pythagorean triples as they are with prime numbers. Many mathematical... more
Subscriber comments

Do we have graded math EE sample on site?

Thank you for your last suggestion! HL Trig syllabus doesn't have "general solution" concept. To what extent we need to complete reciprocal trig functions? for example, basic reciprocal graphs, transformations etc.

Jacqueline, Thank you for your question. I just took a look at the worksheet  and answers are given for 6c and 6d. Is there something missing? or something incorrect? I'm sorry  but I could not see anything missing. Let me know if I missed...

Hi Tim, just checking, that in order to access the etxt I needed to have purchased the textbooks for my students. Thank you for an amazing website. This is my first year teaching IB Math SL/HL since we are in our first implementation year....

Thank you Tim! I do share your opinion on this.

I would like to see a complete answer for the worksheet on exponential modeling v2 problems 6c and 6d... thanks!

Petros, My personal recommendation is that the student should choose a different topic. In my opinion (and the opinion of IB examiners that I speak to) is that a student really needs to explore by doing and applying maths in their Exploration....

Raghuraman, Thank you very much for the positive feedback. I put a lot of effort into making highqualith mock exams and markschemes/solution key.

Raj, I have not yet put any formal advice yet on my site with regard to IB unit planners. I hope to in the near future. It's important to point out that (at least now) the IB does not require explicit unit planning but does strongly recommend...

Raj, Good question. Although it's a good thing to know, students are not required to find a general solution to a trig equation. This is not in the current syllabus, and to the best of my knowledge it will not be in any of the new courses...

Hello all. A maths HL student of mine is very much interested in CS and coding. He is absolutely thrilled with algorithms and wants to do his IA on sorting algorithms. The maths though are not much here. It is rather explaining how they work,...

Hi Tim Thanks for the HL and SL mock papers. They are very helpful.