InThinking Subject Sites
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IB Approved Workshops
Mathematics
IB MYP Category 2
Paris, France, 21 - 23 February 2025
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Mathematics: Analysis and approaches
IB DP Category 2
Berlin, Germany, 28 February - 2 March 2025
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Mathematics: Applications and interpretation
IB DP Category 1
Stockholm, Sweden, 19 - 21 September 2025
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Latest updates
Stats & Probability
Box Plots & Outliers Free
Should they stay or should they go? This page offers some example tasks to explore dealing with box plots and outliers. The concept of an outlier is an important one in statistics and a key discussion...
Number & Algebra
HL Complex Geometries 1.13
'Explore the Geometry of Complex number Arithmetic' What does it mean to add, subtract, mutiply and divide complex numbers? Explore the Geometries of complex numbers using the applets below to see if ...
Number & Algebra
Amortization C/Y P/Y not equal SOLUTIONS
On this page you can find the SOLUTIONS to a short set of IB style questions focusing on the hardest type of Finance questions. Students often get confused on what value 'n' should take when C/Y and P/Y...
Stats & Probability
Linear Regression and Correlation Free
This page has a series of video lessons about Bivariate Data. These can be shared with students using Student Access. These can used in class, either by teachers or students on their own, they can be...
Start here
University Recognition: SL,HL,AI,AA
It's that time of the year (for the Northern hemisphere) when we will be discussing with students and their parents which mathematics course on the IB Diploma is best for them. This page: Which mathematics...
Stats & Probability
Meaning
Measures of central tendency and spread! We know about mean, median and mode, quartiles, interquartile range, range and standard deviation and we know how to calculate them. This topic could easily be...
Assessment
SL Exam Paper 1D
New March 2023 - Below is a full, example Paper 1: short-response questions (4 to 8 marks). Make sure that you have set up Student Access to share this page with your classes so that they can access the...
Assessment
Examiners Report 2024
As ever it is important to point out that we do not represent the IB and that all IB teachers should be finding and reading the examiners reports on 'MYIB' for themselves. As teachers ourselves we are...
Assessment
Examiners Report 2022
It is highly recommended that you and your department read the examiners report after an exam session, because it gives you a real insight into important aspects of what examiners observed and, more importantly,...
Question bank
HL slope fields
The qbank is live and available from the Hompage by clicking on 'Student Access' (top right panel) then 'qbank' (screenshot below). This question set is focused on the numerical, "slope fields" method...