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 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...
Tim's InThinking site has been invaluable to me as a new IB teacher. Before starting any new syllabus item, I use the site to gain a better understanding of the types of problems that my students need to be able to solve. It has helped me to format...
The InThinking Maths website is a very beneficial and userfriendly online guide for IB teachers. You can get an answer to all of your questions. There are all sort of materials and support, many samples of course designs, explorations, exams, teaching...
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

Michael, Thanks much for the positive feedback. The solution key for the HL P2 Mock_C exam is posted above. The solution key for the HL P1 Mock_C exam will be posted no later than next Wed (206). Hope that works for you. Thanks, Tim

Dear Tim, I would like to thank you for all the effort you have put on these resources and this site. It sure makes a big difference to our teaching and the learning of our students. I am going to set my HL class the set C mock in about a...

Shalini, Thanks very much for your query. I'll be posting worked solutions for these integration examlike questions very soon.

Hi Tim, Where can we find answers for SL HL integration exam questions? Thanks, Shalini

JIS Maths (Rebecca?), Very glad that you find the Problems of the Day (P.o.t.D) useful. Yes, there will be changes to the InThinking maths sites for the upcoming new IB maths courses. I will manage a new site for the Analysis & Approaches...

I believe there is an error in example 6; the auxiliary equation should be 1(lambda) not 2.

Hi there! These problems are great  I really found them useful. Do you have anything planned to to write about/put in motion for the new curriculums? I have been hearing a lot from Jim about how the applications courses will pan out but not...

Alaa, Please go to the Tranformations of Graphs page under Functions & Eqns. I have added a document called sequence of transformations of a graph; and near the bottom of the page (under teaching/course notes), I've added a document specifically...

HI First, thank you Tim for the generous resources that I personally use in my classes. Secondly, would you or any other teacher elaborate with more steps on how to reach the answer of Q 10 part B, subparts b & c on Mock A, SL 2014 V1. Thanks...

Even though we resubscribed, still I am getting the message Your school subscription has already expired. Can you fix this problem. Thanks Mano.

Hi Tim...I did not know where to put this comment so you would be sure to see it along with others. I can't tell you how much I have enjoyed using your very valuable material and reading your advice and hints. You have been such a big help...

Raj, Thanks for spotting the error. I've corrected it. Thanks, Tim