InThinking Subject Sites
Join thousands of IB teachers worldwide and take advantage of our expert advice and ready-to-go resources.
Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
3 to 5 November 2017
16 to 18 February 2018
16 to 18 February 2018
Find all InThinking Workshops at www.inthinking.net
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 & co-authored IB maths textbooks (see below).more
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, 1850-1891)
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 e-book (accessed through a website) containing a complete digital copy of the text along with numerous additional material.
If you are interested in Tim Garry visiting your school to work with teachers and/or students, please contact us.
The vacation home exchange service for the IB community.
Feel at home when you travel the world.
There are currently 176 problems (88 SL + 88 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 #88 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)....
I really like the continuously expanding InThinking Maths HL & SL resources. I always find something useful among the plentiful, practical, well-formatted 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...
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.
28 August 2017
Early in the school year, I like to offer my first-year IB maths students - especially HL students - some challenging problems. I like creating... more
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
18 Oct Robyn Gregory
Geometry problem in work of artIt is so wonderful to see examples such as this that connect other subjects with Maths. My students enjoyed looking at your challenging puzzles after they had finished the course. In future I will incorporate some of them in my normal teaching....
18 Oct Tim Garry
lines & planes in space (HL)Jim, Thanks for feedback. The answers given on the Vectors 3D ex set for 8 (b) were incorret. Thanks for spotting that. I've corrected them (version 2 uploaded) - and I have also uploaded a full set of worked solutions for all 10 exercises...
17 Oct Jim Lam
lines & planes in space (HL)Hi, Wondering if you have got full solution to the first exercise: EXS_4-3-20v1_HL_vectors_3D Not sure about Question 8b. Thanks!
11 Oct Chris Holland
Calculus TestsAwesome! Thanks Tim!
4 Oct Joylene Vette-Guillaume
rational functionsThe HL syllabus just mentions asymptotes and does not specify horizontal, vertical or oblique. I assume, because the functions given are both linear, oblique asymptotes will not be included in exam questions. Can anyone confirm?
3 Oct Amit Raj
IB Curriculum ReviewIs it blank?
2 Oct Masese Wilfred
Calculus TestsHi Tim, This is very impressive! I like the differentiation you have done in this test. Thanks. Wilfred.
2 Oct Tim Garry
Calculus TestsSL Differentiation Test 1 - and worked solutions for it - have now been uploaded
29 Sep Tim Garry
Calculus TestsChris, Thanks for the query. I'll do my best to have it uploaded by start of next week.
29 Sep Chris Holland
Calculus TestsHi Tim, Can you tell me when the SL Differentiation Test 1 will be uploaded? Thanks, Chris
26 Sep Shalini Mehan
transformations of graphsThanks! Got it!
21 Sep Tim Garry
transformations of graphsShalini, Sorry for slow reply. Below the 'curve sketching' question I've provided a link to a document with a solution.