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| 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.
Follow-On Activities * Number Tricks * Miscellaneous Fun * Other Useful Pages |
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Click HERE to see the full TIMES EDUCATIONAL SUPPLEMENT review describing what Kjartan Poskitt does |
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!NUMBER TRICKSChopping Pizzas (or dividing up circles)
How to fold Equilateral Triangles and Pentagons
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 7-11-13 trick A trick multiplication you can do faster than a calculatorThe Prime Numbers Trick A strange little prediction
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.
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!
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?
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.
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Here's something we found and like a lot: Mathletts 
These attractive games involve boards and cards. Suitable for Key stage 2-3, they cover different aspects of number problems. Designed by a teacher and presented for class use, we think this is one of the nicest teaching aids we've come across. |
A Guide to the Maths topics in the different MURDEROUS MATHS books
