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Forthcoming Workshops
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
Mathematical studies SL
IBDP Category 1
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
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
Problem of the Day
There are currently 170 problems (85 SL + 85 HL) with more problems 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 #84 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)....
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...
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...
Blogmore
Problem: 12 circles circling a circle
28 August 2017
Early in the school year, I like to offer my firstyear IB maths students  especially HL students  some challenging problems. I like creating... more
P.o.t.D.  150 Problems !
30 July 2017
Over the past six months, I’ve toiled away at composing problems to add to my two Problem of the Day lists – one list of problems for Maths... more
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
Subscriber comments

Shalini, Sorry for slow reply. Below the 'curve sketching' question I've provided a link to a document with a solution.

Hi Tim, Can we have a solution for curve sketching question. Thanks, Shalini

Shalini, Thanks for pointing out that I had not included answers for #4 parts (a) & (b). I've now added those answers above. Thanks for your feedback.

Hi Tim, Is it possible to have a complete answer for # 4? Thanks, Shalini

Got it. Thanks Tim. You are so helpful.

Fabian, Sorry that I've been slow to add materials on this page. I've been developing a set of three exercise sets  and have just posted the 3rd one in the set. The other two will follow soon. Thanks for your feedback.

Hi Tim, Where are the teaching materials for this unit? They are not accessible. Fabian

Miljan, Thanks for pointing out problem with links on this page. All the links should now work properly. Thanks for the helpful feedback.

Hi Tim. The links on this page are not working. Could you please take a look at this? Thanks.

Daniel, Thank you for pointing out this error. The function for #1 should have been y=10^x. I've corrected this and have uploaded a version 2 of this exercise set above. Thanks for your feedback.

Ex_2130v1_SLHL_domain_range has as the answer for #9 that #1 y=10^x and #7 y=logx are inverses of each other yet number 1 is not 10^x

Larysa, Yes  I see now. There is a 'typo' in the markscheme. 2nd equation should be 5y+5z=10 (or 5y5z=10). I will correct the markscheme. Thanks for your feedback.