# data[].attributes.body
See my career journey into Teaching

# data[].attributes.headline
MUST WATCH: Mr. Brockway's 60-second career journey! 

# data[].attributes.subject
MUST WATCH: Mr. Brockway's 60-second career journey! 

# data[].attributes.body
It's actually 1 m 27 s. My first attempt was almost 5 minutes!

# data[].attributes.attachment_link.readable_text
You may wish to look at Shifting Times Tables before trying this problem.
Can you work out how to switch the lights on?

Charlie's Delightful Machine has four coloured lights. Each light is controlled by a rule.
If you choose a number that satisfies the rule, the light will go on.
Some numbers may turn on more than one light!

Start by exploring Level 1. Type in some numbers and see which lights you can switch on.
To start again with a new set of rules, click the Level 1 button.

Can you develop a strategy to work out the rules controlling each light?

Once you have a strategy, challenge yourself to find some four-digit numbers that turn on each light.

Once you are confident that you can work out the rules for Level 1 lights, have a go at A Little Light Thinking, where you can explore how to turn on several lights at once.

You may also wish to explore the Level 2 and 3 lights (which use a different type of sequence) in the same way.
You may also be interested in the other problems in our Cracking Codes Feature.

# data[].attributes.attachment_link.description
You may wish to look at Shifting Times Tables before trying this problem. Can you work out how to switch the lights on? Charlie's Delightful Machine has four coloured lights. Each light is controlled by a rule. If you choose a number that satisfies the rule, the light will go on.

# data[].attributes.body
Read on to see why studying Core Maths is good for you!

# data[].attributes.body
LOADS of activities on here..... :-)

# data[].attributes.body
The math behind online dating...

# data[].attributes.attachment_link.readable_text
Christian Rudder was the creative voice of TheSpark.com, which was the viral content arm of SparkNotes during the site's early rise to popularity. During Rudder's tenure at TheSpark, it was one of the most popular humor sites on the web. Soon after the site's sale to Barnes & Noble, Rudder and the SparkNotes founders - Chris Coyne, Sam Yagan, and Max Krohn - left and began work on OkCupid, a dating site. OkCupid launched in February 2004. Starting in 2009, Rudder maintained a blog on a subdomain of OkCupid named OkTrends (one of Time's 2011 best blogs). It featured statistical observations and analysis of members' preferences and connections. Rudder is also a permanent member of Bishop Allen.
In mathematics and computer science, an algorithm is a step-by-step procedure for calculations. Algorithms are used for calculation, data processing, and automated reasoning.
"It's never been easier to find a date," says CyberDatingExpert.com publisher Julie Spira. And when it comes to online dating, she adds, the "stigma is gone." See the article here.
In mathematics, the geometric mean is a type of mean or average, which indicates the central tendency or typical value of a set of numbers by using the product of their values (as opposed to the Arithmetic mean which uses their sum). Here's a video.
Margin of error is a statistic expressing the amount of random sampling error in a survey's results.

# data[].attributes.attachment_link.title
Inside OKCupid: The math of online dating - Christian Rudder

# data[].attributes.attachment_link.description
When two people join a dating website, they are matched according to shared interests and how they answer a number of personal questions. But how do sites calculate the likelihood of a successful relationship? Christian Rudder, one of the founders of popular dating site OKCupid, details the algorithm behind 'hitting it off.'

# data[].attributes.body
Challenge yourself to some interesting real-life graph interpretation!

# data[].attributes.attachment_link.description
Graphs, maps and charts from The Times — and an invitation to students to discuss them live.

# data[].attributes.body
Tim Harford explains - and sometimes debunks - the numbers and statistics used in political debate, the news and everyday life

# data[].attributes.attachment_link.description
Tim Harford explains the numbers and statistics used in everyday life

# data[].attributes.attachment_link.readable_text
In this TED Talk Hans Rosling presents the results of our public surveys that shows that people don't know key aspects of global development. And Ola Rosling shows that this has nothing to do with intelligence. It's a problem of factual knowledge. Facts don't come naturally. Drama and opinions do. Factual knowledge has to be learned. So Ola teachers 4 rules of thumb for not being ignorant about the world.

Date Posted: 2018-01-18

# data[].attributes.attachment_link.description
In this TED Talk Hans Rosling presents the results of our public surveys that shows that people don't know key aspects of global development. And Ola Rosling shows that this has nothing to do with intelligence. It's a problem of factual knowledge. Facts don't come naturally. Drama and opinions do.

# data[].attributes.body
These questions (and accompanying mark schemes) have been written by subject experts in their respective fields, each providing a unique contextual setting for the specification content of the Level 3 Certificate in Mathematical Studies.
The subjects covered are A-level Chemistry (7405),

Physics (7408),

Biology (7402),

Psychology (7182),

Geography (7037),

Business Studies (7132) and ComputerScience(7517).

# data[].attributes.attachment_link.title
Bank of questions to support other subjects w.answers

# data[].attributes.attachment_link.title
Something to Read. Mathematics in Coffee

# data[].attributes.body
There's even maths in Art.... could you do this?

# data[].attributes.attachment_link.readable_text
MEI Desmos Maths Art Competition 2020

As part of Maths Week England 2020 MEI ran a Desmos Maths Art competition. The theme of the competition was The Environment. The best two entries were chosen in each of three age categories.

Winners

Click on an image to view the art in Desmos.

School years 12-13 (ages 16-18)

School years 10-11 (ages 14-16)

School years 7-9 (ages 11-14)

Other notable entries

The standard of entries to the competition was very high. The judges were also impressed with the following submissions:

MEI Desmos Maths Art Competition 2019

As part of Maths Week England 2019 MEI ran a Desmos Maths Art competition. The best two entries were chosen in each of three age categories.

Winners

Click on an image to view the art in Desmos. Pictures marked with * are animated.

School years 12-13 (ages 16-18)

School years 10-11 (ages 14-16)

School years 7-9 (ages 11-14)

Instructions for creating Desmos Art

We have created writen and video instructions for creating art suitable for students at three different levels:

# data[].attributes.attachment_link.description
As part of Maths Week England 2020 MEI ran a Desmos Maths Art competition. The theme of the competition was The Environment. The best two entries were chosen in each of three age categories. Click on an image to view the art in Desmos. The standard of entries to the competition was very high.

# data[].attributes.body
Some curious number facts...

# data[].attributes.attachment_link.readable_text
Some tricks to help you with your mental arithmetic when you're dealing with reversible numbers.

Subtraction

Subtraction is carried out in a similar fashion, except the difference between the two digits is taken and the result multiplied by 9. For example, in subtracting

Similarly, for

It works like magic. But why?

The underlying theory

Any positive whole number

Its reverse is therefore

For example, if

The sum of

Similarly, their difference is

The result also holds if

Triple digit numbers

Does something similar work for triple digit numbers? We can use the same method as above to derive the corresponding equations. A positive whole number

Its reverse will therefore be

For the sum we get

For the difference we get

The general case

Can we extend these results to numbers with more digits? In the case of a four-digit reversible number

and

For a general

and

This looks a lot more complicated. There are limits, then, as to how far we can go in finding the sum and difference of two reversible numbers this way. But that does not detract from its usefulness within those limits!

Further reading

Find out more about reversible numbers in Michael P. Greaney's Little book of reversible numbers.

About the author

Michael P. Greaney is a writer with particular interests in astronomy and mathematics. Apart from the Little book of reversible numbers, he has written articles for a number of astronomical magazines and was a contributing author to the book Observing and Measuring Visual Double Stars (Springer, 2012).

# data[].attributes.attachment_link.description
Some tricks to help you with your mental arithmetic when you're dealing with reversible numbers. Reversible numbers, or more specifically pairs of reversible numbers, are whole numbers in which the digits of one number are the reverse of the digits in another number, for example, 2847 and 7482 form a reversible pair.

# data[].attributes.body
The booklet contains personal stories from journalists, entrepreneurs, charity workers, lecturers, PhD candidates and civil servants. Case study contributions include: the CEO of Waterstones, the UK’s National Statistician, Chair of the All Party Parliamentary Group on Statistics, Director of the Nuffield Foundation, Director of YouGov and Editor of the Guardian’s DataBlog. Each one describes the steps taken to learn QS (quantitative skills), and the careers that being statistically literate have led them to.