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Mathematics: Applications and interpretation
IB DP Category 1

Stockholm, Sweden, 19 - 21 September 2025
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Mathematics: Analysis and approaches
IB DP Category 1

Berlin, Germany, 3 - 5 October 2025
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Mathematics: Analysis and approaches
IB DP Category 2

Online (IB Approved), 17 - 19 October 2025
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Subscriber comments

Chikae

Descriptive statistics

Thanks so much for these teaching materials!

Tim

Descriptive statistics

Hi Chikae. Thanks for finding this error in the other exercise set (AA_SL_4.3_descriptive_stats). I've corrected the answer to Q2, part (d), and have uploaded a revised version 2. Thanks, Tim

Chikae

Descriptive statistics

AA_SL_4.3 The answer to 2d) IQR = 4 (not 3)

Teresa

Differentiation basics

Hello Tim. In your books the derivative of sin(x) and cos(x) appears quite soon in the differentiation chapter, for both SL and HL. Is there a reason for not being taught later with the differentiation of the exponential and logarithmic functions?...

Ali

Descriptive statistics

Thank you so much

Tim

Descriptive statistics

Hi Martin, Thank you for spotting this error and letting me know. I've put in the correct answer (5/2) and have uploaded a revised version 2. Cheers, Tim

Martin

Descriptive statistics

AA_SL_4.3 Q3b should be 5/2 (not 3/2)

Ali

Transformations - interactive practice

Tim

Sample Explorations

Hi Melis. I do plan to be adding marking comments soon for my IA samples that do not yet have marking comments. Thanks for asking about it. Cheers, Tim

Melis

Sample Explorations

Hi Tim! Do you have teacher's comments for the HL ones? Thank you!