InThinking Subject Sites
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New English A Literature website
InThinking is pleased to announce the launch of our English A: Literature Subject site.
www.thinkib.net/englishalitForthcoming Workshops
Mathematical studies SL
IBDP Category 1
Barcelona, Spain
6 to 8 October 2017
more info
Mathematics SL
IBDP Category 1
Barcelona, Spain
6 to 8 October 2017
more info
Mathematics HL
IBDP Category 2
Barcelona, Spain
6 to 8 October 2017
more info
Find all InThinking Workshops at www.inthinking.net
Site Author
Tim Garry is the site author and has taught mathematics from middle school to university since 1984 and been Head of Maths at three international schools. He's also been an IB examiner for external & internal assessment, contributor to IB curriculum reviews & Maths HL exam writing teams, delivered numerous workshops & coauthored IB maths textbooks (see below).
moreQuote 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
Standard Level Mathematics
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
Problem of the Day
There are currently 122 problems (61 SL + 61 HL) with more added every week. There are separate pages for the SL Problem of the Day and for the HL Problem of the Day HL Problem of the Day #61 There are two growing sets of 'problems' (one for SL and another for HL) with one new 'problem' added nearly every day to each set (along with a worked solution). The idea...
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...
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...
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
Challenge Problems (#10)
10 April 2016
To me  and to most people who enjoy mathematics  solving a problem that requires insight, perseverance and creative use of mathematical knowledge... more
Measuring the earth's radius 1000 years ago
10 November 2015
This past weekend I was reading a review of a new history book, The Silk Roads by Oxford historian Peter Frankopan, in which the reviewer states... more
Perplexing Pentagons (Exploration Idea #499)
13 September 2015
Recently, a Maths SL student asked for my thoughts about her writing an Exploration (IA) on tilings of the plane (Euclidean tessellations).... more
Subscriber comments

John, Thanks for pointing this out. Not sure what happened to the link for the MockA HL Paper 1 markscheme 2014, but I've fixed it  so should work for you now. Thanks.

Hi Tim. Thanks for these  very helpful. Trying to use the 2014 mock resources...not sure why, but the link to HL 2014 Paper 1 MS isn't working?

Daniel, Thanks for the very useful feedback. I seem to have mixed up two different questions. I've made corrections to Q.1 both on this page and the downloadable PDF. Thanks.

The graph shown on #1 from the download doesn't correspond to the function.

Thanks for posting some about the Stat option. Actually one of the reasons for subscribing to this website was for the HL Stat option as I am teaching it for the first time. Any recommendations on resources out there? I was hoping to get some...

Great Job Gary! I love the updated "problem of the day"

Hello! Thank you so much for these useful exercises. I have been making good use of them with my HL class. I just wanted to point out a small error in EXS_6320v1_SLHL_optimization Q4a: the question should read '...b in terms of a.'

Hi  the formatting doesnt work on Chrome still!

JIS Maths: Thanks for positive comment. Take a look at the SL Qs on the Problem of the Day page under Assessment for more SL Review (and also relevant to HL)

These are fantastic. Any more that you are able to produce would be great!

Dear Garry, I have material for p3 calculus, all typed theory plus examples. Let me know if you would like have a look on some of them. Sapan Pal

I've managed to fix all the math expressions/equations on this page. It's quite a long page, so I'm thinking of splitting it into three different pages.