By David Shaw, 27 June 2017
Time to create a map! Making a map of the entire Earth is tricky, because paper is flat, and planets are curved. There are lots of different ways to ‘flatten’ Earth, and each way produces a different shaped map. This method is super spiky as it involves triangles.
Categories:
By David Shaw, 16 June 2017
Stuck in a boring class? Can’t wait for cricket season to start up again? Have a go at pencil cricket, and fix both your problems at the same time!
By David Shaw, 16 May 2017
Maths is everywhere! But it can be hard to find if you don’t know what to look for. Try this mathematical treasure hunt and you’ll soon discover some amazing mathematical secrets!
By David Shaw, 2 May 2017
You’re probably familiar with 20 cent and 50 cent coins. But different countries have different values for their coins. So what’s the best way to number coins?
By David Shaw, 13 April 2017
Time for an Easter trick! There are lots of eggs around at this time of year, but this one is sure to raise some eyebrows. And when you’re finished, you can get your parents to help you cook your green egg, so you can gross out your entire family!
By David Shaw, 7 April 2017
In everyday life, most numbers we use are less than 1000. Sometimes scientists need to use MUCH larger numbers. Here’s an insight into how they do it.
By David Shaw, 20 March 2017
Here’s a quick puzzle for you – this square is too wide for its envelope. Can you find a way to make it fit?
By David Shaw, 7 March 2017
The numbers that we use are not the only way to write numbers. You might know how to count with tally marks, or read Roman numerals. But there are plenty of other ways to write numbers. This one comes from the Maya people.
By David Shaw, 31 January 2017
Here are two tricky puzzles, which look strangely similar. Did we somehow get a puzzle inside your puzzle? You will need Scissors Copy of the printouts, which you can download here (two pages) What to do
By David Shaw, 16 January 2017
Many people know how to play solitaire or patience, but there are actually lots of different one-player card games. This version of patience has a bit of addition, and also some tricky strategic thinking.
12 months, 8 issues
Print & digital subscriptions available.
Sign up to our Double Helix newsletter
Stay in touch with new updates by signing up to our free newsletter
Perfect for ages 8 – 14
Developed by experienced editors
Engaging and motivating
*84% of readers are more interested in science
Engaging students voice