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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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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...

Mike Murray, Dubai American Academy, United Arab Emirates

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.

Peter Morris, Young Business Creatives, Sweden

I highly recommend that HL teachers use your site. I am still amazed at all it has to offer. The wealth of material has made it so much easier for me to provide my students with problems that will help them learn any thing from the basics to accepting...

Wallis Green, Khartoum International Community School, Sudan

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new website ... it is coming

30 October 2019

I have put a few notices on this site over the past couple of months indicating that the new website for the new Analysis &... more

Problem: find exact ratio of areas

1 September 2019

Here is a problem that I thought up (probably has appeared somewhere before but I have not seen it) which is presented in the GeoGebra applet... more

Subscriber comments


  • 13 Nov Tim Garry
    solving other equations
    Hakan, Thanks for finding this error. The correct answer to Q.8 in EXS_2-7(6) exercise set is approximately 1.29 (your answer). I've corrected the exercise set and uploaded it above (version 2). Thanks, Tim
  • 13 Nov Hakan Kurt
    solving other equations
    Dear Tim, Is the answer of the question 8 x=1.29?I can't get x=1.75. Thanks Hakan
  • 13 Nov Beena George
    Teaching Units
    Hi Tim Do you have detailed IB Math SL or HL unit planners to share with us? Thanks Beena George
  • gud
  • Hi Suzhen, Yes, you are correct. I neglected to give the 2nd possible answer for angle ABC (two answers because it is an example of the ambiguous case). So, as you stated, two possible answers: 37.6 degrees or 142 degrees (3 significant figures)....
  • 11 Nov Tim Garry
    new syllabus > new website
    Hi Omneya, Thanks for the question. New site for the Analysis course will launch next week.
  • 11 Nov omneya taha
    new syllabus > new website
    hi Tim when are you going to launch the new site for the AA ?
  • Hi, Tim. Q1 on 4 questions - ‘accessible’ to ‘discriminating’ should has two possible answer: 37.6 degree and 180-37.6=142.4 degree.
  • 7 Nov Jarod Martin
    HL Problem of the Day
    Definitely. Thats what I though but I wanted to make sure.
  • Suzhen, Thank you for your feedback. You are correct, the answer to #8 on EXS_2-5-30v1 should be -2, not 2. And, there is something incorrect for #7. I will make a correction soon and post it here. Thanks very much for pointing these out.
  • 7 Nov Tim Garry
    HL Problem of the Day
    Jarrod, Excellent question. I was taught (and I teach my students) that whenever differentiating or integrating trigonometric functions then the functions must be evaluated using radians because radian measure is 'unitless' (it's just a ratio)...
  • 7 Nov Jarod Martin
    HL Problem of the Day
    Can you help in problem #160? When we plug in 60 degrees or pi/3 we get teh same answer for the first step. How do we know our answer is in radians/ hour and then have to convert?