InThinking Subject Sites
Subscription websites for Cambridge IGCSE teachers & their classes
Most popular
Trigonometry
Sine Rule – Using a Theodolite
'Get some experience working as a Surveyor!' If you have ever seen a couple of people working like the two men in the photograph opposite then you have probably wondered what they are doing. One is...
1 August 2022
Trigonometry
Trig Calculator
'Make your very own trig ratio calculator!'When you input sin 30 on your calculator you should get 0.5Careful to make sure calculators are set to degrees and not radians.Have you ever wondered what your...
18 October 2023
Getting started
Teaching Resources for Secondary Mathematics
This website is designed to help teachers provide a rich and engaging mathematical experience for their students as they learn and think about secondary mathematical ideas and concepts no matter what...
4 October 2023
Trigonometry
Right Angled Trigonometry
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
2 September 2023Trigonometry
Non right-angled Trigonometry
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
2 September 2023
Algebra and Graphs
Functions & Modelling
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
2 September 2023
Trigonometry
Sine Cosine: Triangle, Circle, Wave!
If you haven't been on a Ferris Wheel yet, you've probably seen one. Close your eyes, picture yourself 90m off the ground, level with the main axel of the Singapore Flyer, the world's largest Ferris Wheel...
1 August 2022
Assessment
Question bank
All of the questions (over 350 questions representing over 2000marks worth (as of 14th November 2023, and more available every week!) are NOW AVAILABLE, including the NEW NON-CALCULATOR questions. They...
22 November 2023
Statistics & Probability
World Village Free
'If the world was a village of 100 people....'This page is about a joint project done with the mathematics and geography departments and involving primary and secondary students at the International School...
18 October 2023
Assessment
Need an end of unit revision pack? A practice set of questions to accompany a lesson? A homework task? etc. Want to only share the questions with students? Questions and answers? Questions and fully worked...
3 September 2023
Statistics & Probability
Wisdom of the crowd
Give us 5 minutes of your time. Watch the videos below and fill in the short questionnaire with your guesses below! Get the live data for yourselves! We've all played 'Guess how many sweets there are...
2 September 2023
Trigonometry
Trigonometric Functions
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
2 September 2023
Trigonometry
All Activities Free
On the other pages in this section we have divided our activities in to sub-topics. This page has them all together in one place for browsingTime: 1-2hrs Proof is a hugely significant part of mathematics....
2 September 2023
Getting started
Scheme of Work (0580)
Below is a suggested scheme of work for sequencing the syllabus.The earlier units 1, 2A, 2B, 3 etc ensure that students have the skills required by later modules e.g. unit 6, 7, 8 and 9.The below Scheme...
30 August 2023
Trigonometry
Re-arranging SOHCAHTOA
'Understand all the things that are true about a given diagram, choose the right one and re-arrange it to suit you!' Once you know about SOHCAHTOA the next challenge is to find out how to apply it to...
1 August 2022
Statistics & Probability
Statistics
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
4 October 2023
Statistics & Probability
Interpreting World Statistics Free
'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)...
4 October 2023
Statistics & Probability
Student Survey Free
This page is dedicated to a collaborative project involving a worldwide student (and teacher) survey. Below you will find a questionnaire that will take 15-20 minutes for students to complete. Teachers...
2 September 2023
Statistics & Probability
Scattertastic
The study of statistics at school is a great opportunity to show mathematics in a practical context, but this activity is really about playing with the more abstract mathematics behind the statistics....
2 September 2023
Statistics & Probability
Probabilty & Sets
The following activities are all designed to help teachers engage their students with these key ideas. The activities cater for a range of students and many of them can be used in different ways at different...
2 September 2023