Start here
Author Contributors Free
'The quality and depth of this website would not have been possible without the following Author Contributors' (If you'd like to contribute then please see this page) Kokming Lee has twenty years of experience...
Activities
HLPaper 3 practice: Defining distributions - Poisson
'Collect data, plot it and try to define it's shape(distribution)' The two tasks below use real, historical data. Your task is to understand what the tables of data represent and work out how to model...
Activities
SL T-test
In a mathematics test, you might find the average female scores are higher than the boys or vice-versa. It's costly, and time consuming, to take samples. Is there a way we could decide, from just one...
Activities
Say it both Ways
Recognising, using and switching between these two forms of straight line equations This is a short activity aimed at making you familiar with these two forms of a straight line. There are pros and cons...
Activities
HL Functions - Exam Questions
Modelling is one of the central themes of the IB applications subject. HL(SL) Functions helps develop students’ conceptual understanding and intuition into the behaviour of the different HL functions....
Activities
SL Quadratic models
f(x) = ax2 + bx + c Quadratic functions are those in the form f(x) = ax2 + bx + c, and have fascinated mathematicians for centuries. They have some fundamental properties that will explored in this unit....
Start here
Unit 2 - Growth and Decay Free
In unit 2 we will get a good look at the ideas of linear and exponential growth through the study of arithmetic and geometric sequences. These are key ideas that link well with experiences that students...
Activities
HL Coefficient of determination(R²) 4.13
This topic follows on from Pearson's (r) Limitations and SL Spearman's Rank. To choose between competing mathematical models we need some measurement of their success in predicting the observed data. ...
Activities
Toxic Waste Dump problem Free
'Can Voronoi diagrams help us select a site that is as far as possible from all existing sites?' Russia’s Kamchatka peninsula has one of the highest densities of volcanoes in the world. The map, in the...
Activities
Transition Matrices & Markov Chains Exam Qu
On this page you can find the a set of IB style questions for this topic that covers 120 marks over the range of difficulty levels. There is a full set of solutions linked below. Use the questions as...