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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 e-book (accessed through a website) containing a complete digital copy of the text along with numerous additional material.

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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...

Katherine Young, Cologne International School, Germany

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...

Catherine Cooke, St John's International School, Belgium

The InThinking Maths website is a very beneficial and user-friendly 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...

Şhenaz Tekin, FMV Erenköy Işik High School, Turkey

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As they say, a picture (or a video, in this case) is worth a thousand words. The video here shows one way to use the spreadsheet on the TI-Nspire... more

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Something which I think that is often not emphasized or valued enough when teaching mathematics is encouraging students to visualize a graph,... more

Subscriber comments


  • 19 Apr Tim Garry
    descriptive statistics
    That's one of the tough aspects of IB maths exams - they are unpredictable. Which I think is a good thing, because it requires students to do some problem solving and strategizing - and not just answer routine familiar questions. There was...
  • 18 Apr Benson Wallace
    descriptive statistics
    Thanks. I'm just looking at what to include with my current HL cohort at the moment. I'd say box plots are fairly unlikely on a HL paper also, correct?
  • 17 Apr Tim Garry
    descriptive statistics
    Hi Benson, It's possible there has been in the past, but personally I do not recall an exam question with a frequency histogram having unequal interval widths. It's the kind of thing that I cover if I have a little extra time b/c it can be...
  • 16 Apr Benson Wallace
    descriptive statistics
    Hi Tim, has there ever been a question on a HL paper about frequency density (ie histograms with unequal class interval widths)? I can't find any on Questionbank.
  • 10 Apr Tim Garry
    Start-of-Course Assessment
    Sharma, The start-of-course assessment and algebra refreshers could certainly be used to help a teacher determine if a student is properly prepared to be successful at HL level.
  • 10 Apr S Sharma Sharma
    Start-of-Course Assessment
    Can we use this assesment and refreser for HL / SL selection
  • 3 Apr Tim Garry
    IA - Exploration
    Sandra, There is certainly no need to cite every formula. Where I think it is important for a student to provide a citation is when they carry out some mathematical working that they did not completely figure out themselves. If they use an...
  • 3 Apr Sandra Fernandes
    IA - Exploration
    Thank you :) Another question... Does a student have to cite every formula he uses? Even if they were taught in the lesson or are in the booklet?I assumed not, but now I am not confident enough about that. Thank you!
  • 31 Mar Tim Garry
    IA - Exploration
    Sandra, Good questions. Yes to both. Moderators expect to see written comments by teachers on the student Exploration providing some rationale for marks awarded for different criteria. Also, moderators like to see a checkmark next to students'...
  • 31 Mar Sandra Fernandes
    IA - Exploration
    Hi Tim, When marking the IAs, it's ok to have a summary in the document with the grade we gave to each descriptor and a brief explanation? Also can we leave comments throughout the IA? Thanks, Sandra
  • 28 Mar Tim Garry
    SL Problem of the Day
    Krishnendu, Thank you for pointing out my error in the solution of SL Problem 143. I've corrected it and have uploaded a version 2 of the problem above. Thank you for your feedback.
  • 28 Mar Krishnendu Saha
    SL Problem of the Day
    Hello. In problem no. 143, the value of x cannot be 2.33 unit because in that case you will not be able to draw the triangle. ( 4+2.33 < 8 )