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Forthcoming Workshops
Using TINspire in IB mathematics
IBDP Category 3
Paris, France
17 to 19 February 2017
more info
Mathematical studies SL
IBDP Category 2
Berlin, Germany
24 to 26 February 2017
more info
Mathematics SL
IBDP Category 2
Berlin, Germany
24 to 26 February 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
GDC comparisons
Solving equations on different GDC models: TI84 Plus, TI84 Plus CE, Casio fx9860G, and TINspire CX Part 1  Using the Builtin Solver In order to compare the equation solvers on these models, let's consider the following Maths SL exam question. Let's look at only part (c). The answers to the previous parts are: (a) $r=\text{\hspace{0.17em}}4$ , (b) $p=8,\text{\hspace{0.17em}}\text{\hspace{0.17em}}q=\frac{\text{\pi}}{12}$ . Therefore, to answer...
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...
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
Challenge Problems (#10)
Sunday 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
Tuesday 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)
Sunday 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

Joseph, Thank you for pointing this out. I've uploaded the correct file  the markscheme for Mock A HL Paper 2 2014

There is no Markscheme / HLP22014v2 . The file you uploaded is not Markscheme

Larysa, About grading mock exams ... I've included info above on grade boundaries. I calculated the averages for mark ranges (17) on past exams since 2014  and then suggest that this 'average' set of grade boundaries can work for my mock...

Hello Tim, I would like to ask you how you grade IB HL Math exams. If a student gets 50% or 70% in a Mock exam what grades you give him? What conversion do you use to go from % to IB grades 17?

We are expecting more mock papers to be uploaded because these mock papers were already used by the educators previous academic year. Personally I used it partially when I designed mock papers of Mathematics SL for the year 2016.

Peter, Thank you very much for the feedback. You have good reason to believe your students  they are absolutely correct ... the answer that I had for Q4 was incorrect. I have corrected the answer  and posted a solution for the question that...

Hello, My students have found what they think is a mistake in Q4. They believe the eq. of the normal y=4x2. Unless, there is a misprint in the intended original function, I tend to believe them. Could you please help?

Mahesh, Manish & Murat, Thank you all for your comments. This site is a very big project and the first priority was the core syllabus. Please know that there are materials being created right now for various aspects of the HL option topics...

No infinite series? Taylor?Maclaurin? Power? Too little content for the option.

I would appreciate also review worksheets for the remaining topics. Thanks!

Hello Tim I am looking for more worksheets on PGF. Thanks Savita

Hi, the show that for the discriminating HL question should be +72.