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**Disclaimer**:
*InThinking* subject sites are neither endorsed by nor connected with
the International Baccalaureate Organisation.

### Virtual Think-Ins

#### Keys to Success: DP Mathematics IA - the Exploration

Virtual Think-In, 30 September - 1 October 2021

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#### Keys to Success: The Extended Essay in DP Maths

Virtual Think-In, 8 October 2021

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Find all *InThinking* Workshops at www.inthinking.net

### School visits

If you are interested in **Oliver Bowles**, **Jim Noble** & **Cornelia Noble** visiting your school to work with teachers and/or students, please
**contact us**.

# Latest updates

### HL Matrix Arithmetic, Inverse & Sim Equations 1.14free27 September 2021

On this page you can find a set of videos, created by James Tanton (training available here), for the topic AHL 1.14 that provide an intuitive, conceptual insight into what matrices are, why they are... more

### HL Rational Exponents & Log Laws 1.9free27 September 2021

This is the natural extension from the SL Indices & Logs section and will take your understanding of index notation and logarithms and the relationship between them to the next level. You will review... more

### HL Complex Electricity 1.1327 September 2021

As listening to music we love inspires us to persevere with the otherwise monotonous repetition that mastering an instrument (or sport) may require, being inspired by the applications of mathematics... more

### HL Diagonalisation 1.15 27 September 2021

On this page you can find a set of videos, created by James Tanton (training available here), for topic AHL 1.15, raising matrices to large powers using eigenvalues and vectors to diagonalise the matrix... more

### HL Matrix Arithmetic, Inverse & Sim Equations 1.4free27 September 2021

On this page you can find the a set of IB style questions for this topic that covers 68 marks over the range of difficulty levels. There is a full set of solutions linked below. Use the questions as examples... more

### HL Matrices Inverse & Sim Eq SOLUTIONS 1.427 September 2021

On this page you can find the SOLUTIONS to a set of IB style questions for this topic that covers 68 marks over the range of difficulty levels. The QUESTIONS are linked below. Use the questions as examples... more

### Area function27 September 2021

'Is there a pattern to the area under straight lines?'Students will investigate the areas under straight lines using the below applet - is there a pattern?This helps develop the key skill of investigation,... more

### Log Jam - Thinking about logarithms26 September 2021

Thinking about the relationship between indices and logarithmsThis is a short thinking task to help think about the realtionship between indices and loagarithms and get used to the fundamental idea that... more

### HL with James Tanton (New Topics)free26 September 2021

Dr. James Tanton, creator of the renowned Exploding Dots mathematics experience, a phenomenon that has enthralled over 6.5 million students and their teachers across the planet (see the opening video... more

### Number & Algebra GDC21 September 2021

Video Tutorials/Activities for the TiNspire and Casio (HP Prime to follow . . . .).Below you will find links to a growing number of video tutorials (or key screenshots) on how to use your TiNspire or... more