InThinking Subject Sites
Subscription websites for IB educators with integrated student access.
Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
Forthcoming Workshops
Mathematics: Application & Interpretation
IBDP Category 2
Berlin, Germany
23 to 25 August 2019
more info
Mathematics: Analysis and Approaches
IBDP Category 2
Berlin, Germany
23 to 25 August 2019
more info
Mathematics: Analysis and Approaches
IBDP Category 1
Lisbon, Portugal
8 to 10 November 2019
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 love the "accessible" to "discriminating" levelled questions. They are great for differentiation in the classroom  especially as time in the IB classroom is so precious. Students start work at their own comfort level, discuss in...
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.
I highly recommend that HL teachers use your site. I am still amazed at all it has to offer. The wealth of material has made it so much easier for me to provide my students with problems that will help them learn any thing from the basics to accepting...
Blogsee all
Probability  Complement Approach
2 June 2019
Question: Two fair sixsided dice are rolled. What is the probability that at least one of the dice shows a five facing up? more
Worked Solutions  HL Paper 1 Exam
22 May 2019
The May 2019 IB examination session is now finished. Teachers are eager to scrutinize an exam after it has been made available 24 hours after... more
Subscriber comments

Riddhi, Thanks for the question. Teaching with an emphasis on understanding is nothing new  an approach that effective teachers have been emplyoing for a long time but I do appreciate that the IB has been putting more of a focus on it in the...

Hi Tim! As I wait eagerly for the new site to be launched, please allow me to ask this query. You may be aware about the ATL's push towards 'Conceptual Understanding' and the 12 fundamental concepts ( ). While you draw your course outline for...

Sanjiv, Yes subscriptions are separate for the Analysis course site and the Applications course site  the same as the subscriptions are separate for the Math HLSL site and the Math Studies site. Thanks for asking the question.

Hi! Will I need two seperate subscriptions to access the Analysis & approaches and the Application and Interpretation website?

Andrea & Elisabetta, Thank you for your queries about the new site for the Analysis & Approaches course. I plan for the new site to be launched within the next couple of weeks.

Thank you for asking Elisabetta, I was wondering the same thing. Thank you Tim, for all your hard work with the current site and the new site. I would like to do some planning this summer and would like to look at the new site before school...

Dear Tim when the new two InThinking websites will be active?

Emma, Q: How many ways can 5 pieces of candy be divided between 2 children if each child receives at least one piece? There is more than one way to solve this queston. Maybe easiest way is to consider that each of the 5 pieces of candy can...

Good morning, Please could you send me a worked solution to question 7. Thank you.

Anna, Yes I will try and do that. Might not appear until some time in July. Thanks for query.

Hi Tim, Would it be possible to post worked solutions for a HL/SL paper 2 too. Thanks.

Richard, Very fair point. It had skipped my mind that blog items would also be available to students. If it's not too late, I've removed my worked solutions for the recent HL P1 exam from the blog. I have moved the worked solutions to another...