|Kjartan with 350 kids and 10 teachers at Wolfreton School, Hull in June 2004|
All items may be printed off and copied for your own or classroom use, but MAY NOT be used for wider publication in any form without permission or credit. Thank you.
If you'd like to book Kjartan to do maths demonstrations please see Kjartan Poskitt Appearances
If Kjartan is unavailable, we strongly recommend Andrew Jeffrey. He's a really neat magician/maths teacher who does excellent shows in schools suitable for key stages 1-4.
Click HERE to see the full TIMES EDUCATIONAL SUPPLEMENT review
describing what Kjartan Poskitt does
pages with a video demonstration
Making Flexagons How to make the Triflexagon and the Hexaflexagon. You can also download the Triflexagon template which is suitable for copying and handing out although we suggest you make one at home yourself first!
Chopping Pizzas (or dividing up circles)
How to fold Equilateral Triangles and Pentagons
How to make 4x4 Magic Squares
How to make 5x5 and 7x7 Magic Squares Note that the slightly different 5x5 magic square in which five numbers are chosen and the rest eliminated (seen in "The Great Rhun of Jepatti" demonstration) is explained in More Murderous Maths
The Magical Self-Assembling Cube!
How to make a Dodecahedron
Classroom Displays Some photos taken of items made by children based on features in The Murderous Maths of Everything.
* 3-dimensional O's and X's
* How to Draw an Egg Exactly!
The Predictor Cards The trick with four cut-out cards, you pick a number from 1-16 and it mysteriously appears in a hole at the back!
The Massive Number Prediction A trick where the volunteer adds five huge numbers, but you have written the answer down even before you know what the numbers are!
The 7-11-13 trick A trick multiplication you can do faster than a calculator
The Prime Numbers Trick A strange little prediction
Lil's Giveaway Trick
A betting trick with seven cards that always makes money!
The Red and Black Mystery! A card trick to baffle people, and you don't even need to touch the cards!
The Mindreader A prediction trick. (Hint: it relies on the properties of the number nine!)
The Five Card Trick As presented here, this trick encourages use of the 5x table for younger kids. You could make different versions, e.g. the "seven" card trick would familiarise kids with the seven times table and for this the cards would need to be numbered 1-7 and 8-14.
The Calendar Trick This trick works with any continuous grid of numbers. It's an application of "mean" values.
In September 2011 the INDEPENDENT published a list of
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2/ Ladybird Backpack
3/ Special lunchbox
The Murderous Maths
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The Fibonacci Trick A nice little prediction which involves a Fibonacci series.
Finger Times Tables How to multiply up to 10x10 with your fingers.
The 1089 Trick and some 1089 facts!
The ELEPHANT Trick
- Think of a number between 1 and 9
- Add 1
- Multiply by 9
- Add 1
- Add the two digits of your answer
- Divide by 2
- Turn the number you have left into a letter:
1=a 2=b 3=c 4=d 5=e 6=f 7=g 8=h 9=i
Shout the name of an animal beginning with your letter!
You can have a copy of Kjartan's powerpoint presentation of the FIBONACCI SERIES. It is fully captioned and also features a couple of other tricks. Contact him via Kjartan's Website with your name and school address.
You probably don't need this, but just in case..."It's all here. Enough maths to get you through any and every day, and perhaps help adults keep up with their kids -now there's a thought...ENJOY!" Johnny Ball
It starts with how to add, then leads you through almost everything including long division, decimals, algebra, line/area/volume, probability and even ends up with a look at logarithms!
The Top Ten Most Pathetic Facts in Maths
What You Were Like When You Were Born
How many different ways can you put a pack of cards in order?
The Extra Square Mystery
BIG PANTS from the book Vicious Circles and other Savage Shapes
Here are the instructions to draw the diagram pictured on the right. (Photo taken at the North East Maths Fair June 2001)
- The isosceles triangle BNG has a perpendicular dropped from N to meet BG at point I.
- Line BN is extended to T and then linked to G via point S to form an irregular quadrilateral.
- Likewise line GN is extended to A and then linked to B via point P so that quadrilaterals BNAP and GNTS are congruent.
|Resources for becoming a Teacher|
Fun Online High School Diploma Test!
A Guide to the Maths topics in the different MURDEROUS MATHS books
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