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

### Forthcoming Workshops

#### Mathematics SL

IBDP Category 2

Berlin, Germany

24 to 26 February 2017

more info

#### Mathematics HL

IBDP Category 2

Berlin, Germany

24 to 26 February 2017

more info

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

### School visits

If you are interested in **Jim 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

### L, S & P PracticeTue 27 September 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

### Statistics PracticeTue 27 September 2016

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

### Calculus PracticeTue 4 October 2016

Practice questionsThis 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... more

### G & T PracticeThu 29 September 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

### Focus on ProbabilityFri 25 December 2015

Possibly the most relevant, useful and appropriate part of any mathematics course in schools! Everyone has an intuitive understanding of probability at its most simple level, but it is amazing how short... more

### Focus on - Exponential modelsMon 3 October 2016

The exponential function is set apart from other families of functions because of the fundamental impact of having the variable in the exponent. It stops being a multiplier and starts being more 'powerful'... more

### Focus on - Quadratic ModelsMon 3 October 2016

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. Probably the best... more

### Resources for RevisionMon 10 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 1Mon 10 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 ConceptTue 4 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

### Functions PracticeMon 3 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

### Focus - Chi SquaredMon 26 September 2016

The chi squared independence tests is a widely used technique for looking for a relationship between variables that are categorical. We can use a scatter graph to look for a relationship between GDP and... more

### Focus on SetsThu 19 January 2017

Sets, subsets, intersections and so on. Sets are a mathematical way of classifying objects by means of clear definitions. Any given object has a number of properties that can be sued to classify it and... more

### Marked ProjectsfreeMon 30 January 2017

The aim of these pages is provide some examples for teachers of projects that have been completed, the marks they were awarded and the justification for those marks. The more such examples we have seen,... more

### Past Paper ReviewfreeMon 10 October 2016

This section is intended as place to keep records of the different exams that have been produced for the syllabus in which the first exams were taken in May 2014. Reviewing these exams is a really important... more

### Comparing Data DistributionsfreeSun 16 October 2016

'Whose results are best? Boys, Girls, Monkeys, Martians, Flying pigs, Babies or Robots?' All of the above species were asked to take a multiple choice mathematics test and the results were recorded. Now... more

### Interpreting World StatisticsMon 26 September 2016

'What impact have key events had on the health and wealth of nations over the last 200 years?' This activity makes use of the 'Awesome' (a word that should be used less but is totally appropriate here)... more

### Marking & ModerationFri 7 October 2016

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

### Focus on Non-right angle trigonometryThu 17 November 2016

Here we take trigonometry to the next level by working with triangles that do not have a right angle. We will work on three key rules. The Sine rule, the Cosine rule and the formula for th area of a triangle.... more

### Project InspirationThu 6 October 2016

The idea of a Mathematical project or investigation is something that always really excites a lot of Maths teachers, but often Maths Studies students need a little bit more persuasion to get excited.... more

### Optimal JumbleTue 4 October 2016

'Piece this puzzle together by splitting up the three problems into a logical order'This problem is all about the 9 steps of 3 different optimisation problems. These have been cut up in to 27 pieces and... more

### Logic, Sets & ProbabilityMon 26 September 2016

'A guide for for teaching! Ideas and resources and lessons to look forward to'A fantastic element of the course, this unit gives importance to a part of Mathematics that is otherwise easily overlooked.... more

### Focus - Cumulative FrequencyMon 26 September 2016

This topic is all about these two related tools for helping us look at how a data set is spread out. Learn about filling in cumulative frequency tables, plotting the corresponding curves and using the... more

### Student writing guideWed 5 October 2016

This section offers students advice and guidance for writing their projects. This can be tricky for teachers. We have to walk the fine line between offering students constructive and supportive advice... more

### Statistics Teaching IdeasfreeMon 26 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

### Criteria for studentsFri 7 October 2016

The following is a rewriting of the marking criteria for students. So often, I feel that the biggest barrier to success is getting students to be aware of, understand and pay attention to the details... more

### Geometry & TrigThu 29 September 2016

'A guide for for teaching! Ideas and resources and lessons to look forward to'This page is good for the unit with this name in both the new and previous syllabi!This is a big, key topic in the syllabus... more

### G & T Teaching IdeasfreeTue 27 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

### Focus on stationary points and optimisationThu 14 July 2016

In this section we look at how calculus is used to find the local maximum and minimum values of functions and, as such, how that is used to optimise. This is done both in the abstract and in context but... more

### Practise ProjectsThu 6 October 2016

Time is probably the teachers biggest complaint when it comes to fitting in different ideas into a syllabus and it is so with good reason! As a result, it is often beneficial to look for ways in which... more

### Exploring ExponentialsMon 3 October 2016

'Thinking about the term 'Exponential'. When and why do we use it? What does it actually mean?'This activity is really a series of short activities and discussions to have to help think about what is... more

### Exponential!Mon 3 October 2016

'Use dynamic constants in graphing software to explore the properties of exponential functions'Exponential functions break the mould by including the variable as a power. This makes them a completely... more

### 3D UncoveredThu 29 September 2016

Use Google sketchup to see 2D planes in 3D shapes and make 3D trigonometry a little bit easier!This activity uses the 'Free' and 'Powerful' Google sketchup application to aid the visualisation of 3D geometry... more

### Paper 2Mon 10 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

### Possible TasksThu 6 October 2016

There is no doubt that the best projects come from students that have come up with their own idea. They may not be the first students to do so, but the idea was original to them and then they had help... more

### About IAWed 5 October 2016

This page is intended as a a brief guide to the IA process and the paperwork you should have to hand for planning and running it. This will be most appropriate for those new to teaching the course, but... more

### Rates of ChangeTue 4 October 2016

'Distance, speed and acceleration - how does one affect the other?'The concepts behind calculus begin with understanding the notion of 'rate of change'. Kinematics - the study of moving objects is a really... more

### Frequency Distribution MatchMon 26 September 2016

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

### Box plots - why?freeMon 26 September 2016

What is in a bunch of numbers? What stories do the numbers tell? It all depends on the way we look at them! Probably, we all have different instincts about what we might do with a given group of numbers.... more

### StatisticsMon 26 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

### Focus - Arithmetic SequencesMon 26 September 2016

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

### Focus on SOHCAHTOASun 18 September 2016

This part of trigonometry can be seen in the recurring relationships between the sides of right angles triangles. The relationship means that we can use two bits of information about a triangle to work... more

### Notes FilesfreeSat 3 January 2015

As mentioned before, these files have arisen from looking for a solution to note taking in class. The result has become a useful revision tool. I did not want to spend time creative comprehensive notes... more

### Homicide RatesMon 26 December 2016

This is an able students who has, in general, shown excellent attention to detail and this has come across in this internal assessment. The student studies geography and has a real interest in human geography... more

### Common ErrorsFri 7 October 2016

Common errors are both surprising and then not! There are bound to be things that are that much more difficult or that much more likely to be left out, but at the same time, if we know about them then... more

### Project PlannerfreeWed 5 October 2016

The diagram above is an appropriate model more often than not! A lot of planning is required before anything actually gets done. The planning is probably the hardest part! With that in mind, the following... more

### Dopey LogicfreeTue 27 September 2016

'Can you make a sound and valid argument for the legalisation of Marijuana?'The 'legalise it' debate is one that is regularly in the news these days. What are your views? What arguments do you back your... more

### Web VennsTue 27 September 2016

'What makes a good venn diagram?'Not surprisingly, the internet is full of Venn diagrams. They range from Highly complex to just plain funny with all sorts of categories in between. This page is really... more

### Independence DayMon 26 September 2016

'Is political persuasion dependent on Gender? How can we tell - an introduction to independence tests'When two data sets are numerical we can look for correlation using scatter graphs and linear regression... more

### Real independence testsMon 26 September 2016

'Get students doing Independence with real, live data to add meaning to this topic'Advances in technology, the Internet and social networking have given us many new opportunities to bring real, live data... more