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

### Forthcoming Workshops

#### Mathematics: Application & Interpretation

IBDP Category 2

Berlin, Germany

23 to 25 August 2019

more info

#### Mathematics: Analysis and Approaches

IBDP Category 2

Berlin, Germany

23 to 25 August 2019

more info

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**.

### Home-2-Home

The vacation home exchange service for the IB community.

*Feel at home when you travel the world.*

**www.home2home-inthinking.co.uk**

# Most popular

### N & A New Syllabus 2019free17 March 2019

The new Mathematics: Applications and Interpretation syllabus is out and published on the IB website. Log in to your MyIB account and head to this link . It is a new course with a new name and renewed... more

### Applications SL Scheme of Workfree8 March 2019

The design and elements of the course actually allow for a good deal of creativity in designing a course. For that reason, I can see a number of useful schemes of work where teachers vary according to... more

### Applications HL Scheme of Workfree21 August 2019

The new HL syllabus covers 240 hours of lessons (including the 30 hours of "mathematical toolkit"). There is a lot of new material in the applications course - how much is new will depend, at least to... more

### Percentage Error23 September 2016

'Percentage Error - Wrong, but how wrong? How do we judge the significance of an error?'Given that the vast majority of descriptive numbers are rounded and/or estimated its really worth stopping to think... more

### New Syllabus9 June 2019

The time is approaching! What do you need to know and how are we helping?You can now find the guides for the the two new mathematics courses on MYIB at this link (you will need your password for access).... more

### Functions - New Syllabus 2019free8 March 2019

The new Mathematics: Applications and Interpretation syllabus is out and published on the IB website. Log in to your MyIB account and head to this link . It is a new course with a new name and renewed... more

### Focus - Arithmetic Sequences27 September 2018

Arithmetic sequences, those where each term differs from the previous by the same common difference, are a key conceptual element of the course. Strongly linked with linear growth, this important idea... more

### The 6 million questionfree31 March 2019

Big numbers present us with a real challenge! How do we understand their size and the significance of what they represent? Once numbers get past a certain size this gets harder and harder. One, two, three,... more

### Number & Algebra22 September 2016

'A guide for for teaching! Ideas and resources and lessons to look forward to'This page is good for the 'Number and Algebra' units from both the new and previous syllabi! There is also a sub-section for... more

### Focus - Sets of numbers26 September 2016

This topic is about the the 4 key sets and subsets of our number system. This as fundamental bit of mathematics that can be easily lost if not covered properly. Students need to explore the notion of... more

### Big & Small Numbers23 September 2016

'What is the biggest number you know? What is the smallest? How can we work with such extreme numbers?'Mathematics knows few limits! We can go on and on describing even bigger and even smaller numbers... more

### SL Core together30 June 2019

It was always a key part of the new course design to include a core element of the course that was common to both the applications and the analysis route. This is recognition of some of the core skills... more

### Sets of Numbers23 August 2017

'Classify these numbers and decide what makes them different and what they have in common!'What makes two numbers different from each other apart from their value? Are fractions and decimals really different... more

### Stats - New Syllabus 2019free8 March 2019

The new Mathematics: Applications and Interpretation syllabus is out and published on the IB website. Log in to your MyIB account and head to this link . It is a new course with a new name and renewed... more

### N&A Teaching ideasfree22 September 2016

Here you should find a wealth of resources that can be used by you and your students for teaching this topic. The resources at the top of the page are activities and investigations aimed at creating a... more

### SL CORE30 June 2019

The following simply lists the parts of the syllabus that are in the core.Number & AlgebraFunctionsGeometry & TrigonometryStatistics & ProbabilityCalculus more

### Aims for the new courses9 August 2019

Here you can find the files available for download1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12... more

### Percentage Perception22 September 2016

'What do these errors in perception really tell us?'Think about the country you live in. For every 100 people that live in your country, how many of them do you think are Muslim? How many are Christian?... more

### Indices & Logs SL9 June 2019

Here are some teaching slides that you might use with your students. At SL, students are required to understand the notation and the concept of a logarithm a the inverse of an index. more

### The Normal Distribution2 May 2018

The normal distribution is a fascinating, naturally occurring phenomenon that has very relevant applications to understanding the world around us. When a data set is normally distributed it has some key... more

### Financial Mathematics26 September 2016

This is one of the most obviously relevant parts of the course and from my experience, students show an appreciation for that. That said, very few students are actually involved with borrowing and investing... more

### Exactly22 September 2016

'Explore the role of estimation and rounding in our society - Leading to significant figures'Numbers are a crucial descriptive tool that surround every aspect of our daily lives. How many of the numbers... more

### In The Money23 September 2016

'Seconds to make up your mind! - Have fun with this hypothetical problem of sequences'A long lost relative wants to share their fortune with you! There are 4 different options about how to receive your... more

### Focus on - Geometric Sequences26 September 2016

The Geometric sequence is a fundamental bit of mathematics that is an inherent part of exponential growth and decay. Their properties are simple in nature but they are often counter intuitive. The key... more

### SL Amortization and Annuities19 July 2019

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,... more

### G and T - New syllabus 2019free8 March 2019

### New Internal Assessment - a Comparisonfree22 August 2019

The below, and linked pages, aims to help Studies teachers understand the similarities and differences between the current Studies 'Projects' and the current (to be updated once the 'new exploration criteria'... more

### Schemes of Work19 September 2016

How and where to fit this course into the time allowed is a constant concern for most teachers. If you are an experienced teacher of Maths Studies then you have probably arrived at numerous versions of... more

### Curriculum Review and 2019free7 November 2018

Many of you will know that the IB diploma program has a review policy that means it reviews its curriculum every 7 years. The goal is to make sure that the curriculum evolves with demands and it is, for... more

### Visual Sequencesfree1 October 2018

'Get out the multilink cubes and literally build an understanding of arithmetic sequences'Build a visual representation of the sequence 1, 5, 9, 13. What does it look like? What have your colleagues build?... more

### Arithmetic Sum1 October 2018

'Use cubes to do a lovely proof of the sum of an arithmetic sequence!'You need to know how to use and apply the formula for the sum of an arithmetic sequence but here you can go one better by understanding... more

### Mock Exam14 April 2018

'A paper students have not seen before'This page offers two whole exam papers that students will not have seen before. As I teacher I find I can never have enough practice of exam style questions and... more

### Category 2 Workshopfree26 April 2019

Category 2 - Workshop - Berlin - 23 - 25 August 2019This workshop provides opportunities for experienced DP teachers to explore and develop their understanding, delivery and management of this course... more

### SL Investment Intuition - Compounding19 July 2019

Sometimes our intuition/gut feeling for numbers can lead us astray.What's the best way your parents could help to make your life easier? I'm sure you can think of many ways. . ! One way would be to invest... more

### External Assessment12 July 2019

On this page you will find links to a full IB SL Applications and interpretation example exam:Paper 1 (40% of final mark): short-response questions (3 to 9 marks) andPaper 2 (40% of final mark): Long-response... more

### Focus on correlation and regression7 November 2018

The search for meaningful relationships between two variables. Here we take the leap from 1 variable to 2 variable data analysis. In any given survey we collect data for a number of 'items' surveyed.... more

### Functions Practice3 October 2016

This page has a variety of tasks designed for practise and revision. Practice questions are an important part consolidating students' understanding of a concept. They can be found from numerous sources... more

### G & T Practice28 January 2018

This page has a variety of tasks designed for practise and revision. Practice questions are an important part consolidating students' understanding of a concept. They can be found from numerous sources... more

### N & A Internet Guidefree13 January 2018

This page is intended to list and outline some of the best resources available online to support the teaching and learning of this module. These will mostly be videos, virtual manipulatives and articles.... more

### Meeting Functions12 December 2017

'Get to the heart of what functions are about by matching these inputs, equations and outputs together - a 'simple' matching activity!'Its easy to study functions at this level and forget what they are... more

### Marking & Moderationfree11 August 2019

This page is intended to offer guidance and advice for the marking and moderation of Internal Assessment projects that should be considered a practical elaboration of information included in IB documentation.... more

### IB Core5 October 2016

Teaching any of the subjects as part of the IB Diploma program involves a solid knowledge of the 'core' of the IB, the central philosophy and the over arching aims for IB Diploma students. This is an... more

### Site Updatesfree9 August 2019

Get a detailed summary of every change and update here.One of the major advantages of web based resources must be that they remain dynamic. Whilst I hope there is already a significant amount of very... more

### Frequency Distribution Match24 October 2017

In order to think about the properties of a ‘Normal’ distribution, it is probably important to consider the whole notion of a statistical distribution. In this activity, we will do just that! The... more

### Resources for Revision10 October 2016

Obviously this is a crucial part of any exam program and over the year I have tried lots of different ideas. On this page you will find ideas about when and how revision can be offered and some recources... more

### Paper 110 October 2016

A bullet point description of paper 1The following outlines how accuracy is examined to the best of my understanding. A new ruling on accuracy was brought into play in November 2011. A principle reason... more

### Focus on Calculus Concept4 October 2016

This is the first of three sections on differential calculus. This is significant branch of mathematics with lots of applications. It builds very nicely on other concepts in the course and those you are... more

### SL Voronoi Diagrams15 August 2019

In a volcanically active region (like the island of Montserrat), which place is the furthest away from all existing volcanoes? (and hence, possibly, the safest place to live).Which areas of the city are... more

### Statistics Practice18 August 2018

This page has a variety of tasks designed for practice and revision. Practice questions are an important part consolidating students' understanding of a concept. They can be found from numerous sources... more

### Statistics26 September 2016

'A guide for for teaching! Ideas and resources and lessons to look forward to'This page is good for both the 'Descriptive Statistics' and 'Statistical Applications' units in the new syllabus and the 'Statistics'... more