InThinking Subject Sites
Subscription websites for IB teachers & their classes
Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.
IB Approved Workshops
Mathematics: Applications and interpretation
IB DP Category 2
Barcelona, Spain, 14 - 16 February 2025
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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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Find all InThinking Workshops at
inthinking.net
Latest updates
Functions
SL Wire Waves Vocab & Practice
These two wire curves are different representations by students of the same function: Could they both be right? You can use your body to represent a function, now its time to sculpt some wire and "feel"...
Number & Algebra
Inflation Free
What is inflation? How does it impact our savings, investment and loan decisions?Why is there more than one way to calculate a "real" rate of interest?Find out below, using real data on inflation and...
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...
Question bank
Qbank SL Log Scales Free
The qbank is alive and available once you click through to your 'Student Access' area. The question set focuses on student's understanding of logarithms as powers of 10 or 'e', and the many real-world...
Number & Algebra
SL Amortization and Annuities
The '2018 State of the Nation's Housing' report from Harvard university states that more than 1 In 3 households pay over 30% of their income in housing costs (rental or mortgage payments). Furthermore,...
Number & Algebra
Financial Maths - Online Assessment
A page of questions about Compound Interest, Loans and Annuities that can be set as an online assignment using Student Access and which will be marked automatically and the result put in to the grade...
Question bank
Question bank Free
Want to make a quick set of practice questions? A revision pack for an end of unit test? A Quiz or end of unit test? Go straight there with this qbank link With nearly 1000 questions and fully worked...
Number & Algebra
SL Compound Interest & depreciation
This is a topic that most will have seen before. The idea of repeated percentage change and the relationship with exponential functions and geometric sequences is what this is all about. What is often...
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Matrix Theory: Analysing Coupled Linear Differential Equations Free
A brief review of diagonalization, eigenvalues and eigenvectors, complex numbers, and one-dimensional differential equations towards a means for fully solving systems of differential equations. Analysing...
Question bank
Qbank HL differentiation
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 use of HL differentiation techniques...