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Math-magic Show. A Few Instructions. Some tricks directed to the audience Most will involve one or more assistants A random method for selection Your applause will be my indicator Card trick vocabulary: to “ square a deck ” And please turn your cell/smartphones off. A few warm-ups to…. - PowerPoint PPT Presentation
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MATH-MAGIC SHOW
A Few Instructions Some tricks directed to the audience Most will involve one or more assistants A random method for selection Your applause will be my indicator Card trick vocabulary: to “square a deck” And please turn your cell/smartphones off
A few warm-ups to…
check if you are stilldigesting your lunch
Octagon Magic: Spatial Sense
The audience
Some of you are still digesting…
We need another warm-up
This Time: Number Sense
1000
The audience
40
1000
30
1000
20
1000
10
…equals what?
Let’s look more closely…1000
401000
301000
201000
10????
YES!!!1000
401000
301000
201000
104100
You’re still not ready for the show
But you’re still having fun, right?
One More Spatial Sense Warm-Up
1 2 3 4 5 6 7 8 9 10
Bookworm ProblemA 10-volume encyclopedia sits on a shelf. Each
volume is 4 cm thick. Suppose a book-worm starts at the front cover of Volume 1 and eats his way in a straight, horizontal line to the back cover of Volume 10.
How far does the book-worm travel?
1 2 3 4 5 6 7 8 9 10
Que distancia viaja/recorre?
Last One: But you have to be quick!
One die – Two dice
One domino – Two dominoes
Very good !
Magic Domino Card
I will guess your number1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17
18 19 20 21 22 23 24 25 26 27 28 29 30
1 assistant
Pick a number, write it down, show it to the audience, then place the board face down
Do you see the number here?
20 21 22 23 28 29 3016 17 18 1924 25 26 27
YES or NO?
What about here?
12 13 14 15 8 9 10 11 28 29 30 24 25 26 27
YES or NO?
And here?
12 13 14 15 4 5 6 7 28 29 30 20 21 22 23
YES or NO?
Here?
10 11 14 15 2 3 6 7 26 27 30 18 19 22 23
YES or NO?
And finally, here?
9 11 13 15 25 27 29 1 3 5 7 17 19 21 23
YES or NO?
Calendar Magic 1 assistant
The Flying Card1 assistant
Ring PuzzlesThe audience
I will halve what you have
1 assistant
I will guess your Numbers!
Pick a whole number between 100 and 300It can’t be 100 and it can’t be 300
3 assistants
Secret Move
13 identical objects
2 assistants
Magic Touch…
The Magic Rope
An Encore?
THANK YOU VERY MUCH! GRACIAS
12. Finale: Double MagicThe mathematician’s way then…The magician’s way
Spades Hearts Diamonds Clubs
I will halve what you have
1 assistant
Magical Twins (Tweelingen)
1 vrijwilliger
I will predict your sum
Begin by placing digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 in any nine cells, in
any order Then we will add three more
digits
Quick test to check if you are still awake…
1000
40
1000
30
1000
20
1000
10
equals?
Let’s look more closely…1000
401000
301000
201000
10????
1000 40
100030
100020
100010
4100!
Bookworm Problem
1 2 3 4 5 6 7 8 9 10
Bookworm ProblemA 10-volume encyclopedia sits on a shelf. Each
volume is 5 cm thick. Suppose a book-worm starts at the front cover of volume 1 and eats his way in a straight, horizontal line to the back cover of volume 10.
Une encyclopédie à 10 volumes est sur une étagère. Chaque volume a une épaisseur de 5 cm. On suppose qu’un petit ver commence à la couverture du volume 1 et parcourt une ligne droite et horizontale jusqu’au dos de la couverture du volume 10.
Bookworm Problem1 2 3 4 5 6 7 8 9 10
How far does the book-worm travel?Quelle distance parcourt le petit ver?
Bilingual Card Trick
0ne Two Three Four Five Six Seven Eight Nine Ten
Domino Magic
Qu’est-ce que c’est?
De 100 a 300
I will read your mind
The Magic Cut
I will predict your numbersUne feuille de papier s’il vous plait …et
un moment de silence
1 2 3 456 7 8 91011 12 13 14 1516 17 18 19 2021 22 23 24 25
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
Ik dank u van harte voor uw aandacht en deelname
Un dernier tour?
Magic SquareA B C D
C- D+ A- B+
D+ C+ B- A-
B A-- D++
C
Do As I Do1 vrijwilliger
5. Bewitched Addition4 vrijwilligers
3748
1564
7986
5296
8176
3840 different possible permutations (10 x 8 x 6 x 4 x 2)
Bewitched Addition4 vrijwilligers
3748
1564
7986
5296
8176
Once final permutation is chosen, place number strips close together to form four 5-digit numbers
4. Parallel Thinking:21st-century telepathy
Lambrecht + 4 vrijwilligers
Stage assistance to escort Lambrecht, then me, outside Atrium
7. 3-Object Divination1 vrijwilliger
Blindfolding assistance please
9. Poker Magic5 vrijwilligers
