This content is not available from your geographic area.
Log in

La moyenne des choses

S1 E32
·
2016

Here's an easy way to add up in your head all the numbers in a 3-by-3 block of dates on a calendar.

Levels:
Élémentaire 4e année 5e année 6e année
Subjects:
Mathématiques Nombres
Skills:
Communication Pensée critique Résolution de problèmes
French level:
A2 : Intermédiaire ou de survie B1 : Seuil
Subscription
play_circle

E1 : Le 9 magique

3min30s
Eric the mathmagician pulls off a magic trick that will amaze your friends! Whatever number you choose, the answer will always be nine. It's not magic... it's mathematics!
Subscription
play_circle

E2 : L'ancien est nouveau

3min30s
Go back a few thousand years to ancient Egypt with Eric! With him, you'll discover and demystify a secret multiplication system.
Subscription
play_circle

E3 : Tête à tête

3min
This experiment is not a puzzle: we measure about eight times the height of our head. It's not magic... it's mathematics!
Subscription
play_circle

E4 : Métamorphoses

3min30s
Eric shows us how to turn a bird into a fish! What is the secret behind this metamorphosis?
Subscription
play_circle

E5 : Mesurer la hauteur d'un arboretum

3min
How can you find the height of something very tall - like a tree or a basketball hoop - without a scale? Eric will help you!
Subscription
play_circle

E6 : Zéro mon héros

3min30s
What is the most powerful number in the world? Come and find out with Éric!
Subscription
play_circle

E7 : Le pouvoir du double

3min30s
Éric the mathemagician illustrates the power of doubles to transform a single gold coin into a billion coins in just one month. It's not magic... it's mathematics!
Subscription
play_circle

E8 : La probabilité en fête

3min
What would you say if we challenged you to prove that at least two people in your class share the same birthday? Would you accept? If so, and if there are at least 23 people in your class, chances are you would win!
Subscription
play_circle

E9 : Le carré parfait

3min
What geometric shape do you have? Chances are, you're a square, like most of us! But you could also be a big rectangle or a small rectangle... Come and find out with Éric!
Subscription
play_circle

E10 : Une chaise en papier

3min30s
Eric examines the strength of a paper chair. Will it hold the weight of one person? We've known for a long time that triangles are very strong - but are they really the strongest shapes? Let's find out!
Subscription
play_circle

E11 : La face cachée du dé

3min30s
Éric presents a magic trick with dice. Simply by looking at a tower of dice, he can calculate the sum of all the numbers on the hidden faces. It's not magic... it's mathematics!
Subscription
play_circle

E12 : Tourner en rond

3min30s
It's possible to create a perfect circle without lifting a finger! If you're ready to become a human compass, you can create your own perfect circle. It's not magic... it's mathematics!
Subscription
play_circle

E13 : Calculer son anniversaire

3min
Can your calculator tell you your date of birth? Of course it can! Come and find out with Éric!
Subscription
play_circle

E14 : Toutes proportions gardées

3min30s
Eric explores how to measure different parts of the face using unconventional units of measurement.
Subscription
play_circle

E15 : Un mauvais pli

3min
How many times do you think you can fold a sheet of paper? Four times? Five times? Nine times? Come and find out with Éric!
Subscription
play_circle

E16 : Estimer l'estimation

3min
Eric impresses us with his extraordinary powers of estimation. Using a few general facts and estimates, discover how to estimate how much time you'll have spent sleeping until you reach the age of 18.
Subscription
play_circle

E17 : L'éléphant danois

3min30s
Do you think it's possible to read your friends' minds? Come find out with Éric!
Subscription
play_circle

E18 : Chaussure au pied

3min
Did you know that most people are seven feet tall? That is, we measure seven of our own feet. It's not magic... it's mathematics!
Subscription
play_circle

E19 : Jaloux des multiplications

3min30s
Here's an ancient math trick that uses a louvered window to multiply double-digit numbers. The mystery is downright simple!
Subscription
play_circle

E20 : Le chiffre de César

3min30s
Intercept a secret message. Eric deciphers the Caesar code used by the great Roman emperor Julius Caesar over 2,000 years ago. It's not magic... it's mathematics!
Subscription
play_circle

E21 : Attache-toi bien

3min30s
How many ways are there to tie shoes? Come and find out with Éric!
Subscription
play_circle

E22 : Lettres aux chiffres romains

3min
Did you know that the letters C, D, I, L, M, V and X are Roman numerals that were used by the ancient Romans and that we still use today? Help Éric learn the Roman numerals.
Subscription
play_circle

E23 : Dans un sens ou dans l'autre

3min
A palindrome is a word, phrase or couplet that reads the same in both directions-left to right and right to left. Come and discover with Éric if numbers can be palindromes too!
Subscription
play_circle

E24 : Pareil, mais différent

3min
Which of the two containers can hold the most marbles - the taller or the shorter? We can't always trust our eyes. Come and explore the world of illusions with Éric the mathemagician.
Subscription
play_circle

E25 : Les anneaux de Möbius

3min30s
Éric tries his hand at magic with a magic circle. Can he create intertwined rings with just a strip of paper?
Subscription
play_circle

E26 : Un petit bec en papier

3min30s
Here's a trick for young mathmagicians. You can take the flat surface of a sheet of paper and transform it into three dimensions. See how Éric uses folds and scissors to create something impressive!
Subscription
play_circle

E27 : Pavage et bavardage

3min
Éric the mathemagician amazes us once again by creating a geometric paving stone in the shape of his head! It's not magic... it's mathematics!
Subscription
play_circle

E28 : Une fraction de gâteau

3min30s
Did you know that you can use math to share a cake? You will discover with Éric how fractions can be absolutely delicious!
Subscription
play_circle

E29 : Mes yeux miroirs

3min
The mirror is a very important object for magicians, as they use it to create illusions. Éric even uses it to transport himself into another dimension!
Subscription
play_circle

E30 : Ceci avec cela

3min30s
How many different ways can you combine 6 shirts and 4 pairs of pants? Discover the number of possible combinations using the mathematical powers of multiplication.
Subscription
play_circle

E31 : Poids lourd poids léger

3min
Éric discovers that the mass and size of an object are not at all the same thing.
Subscription
play_circle

E32 : La moyenne des choses

3min30s
Here's an easy way to add up in your head all the numbers in a 3-by-3 block of dates on a calendar.
Subscription
play_circle

E33 : La grille au trésor

3min30s
Eric is on a treasure hunt, but first he has to learn how to use a grid map! You can learn to read a grid and help Éric find the treasure.
Subscription
play_circle

E34 : Le cerf-volant

3min
Do you know how a kite works? Together with Éric, you'll discover that symmetry helps kites fly. It's not magic... it's mathematics!
Subscription
play_circle

E35 : La courbe est droite

3min
Éric is a master of illusions! He'll show you how to create an optical illusion by drawing straight lines that form a curve.
Subscription
play_circle

E36 : Point de fuite en perspective

3min
Did you know that some things can seem far away - as if they were disappearing - when you look at a flat surface? It's an illusion called the vanishing point. It's not magic... it's mathematics!
Subscription
play_circle

E37 : Les motifs de la danse

3min30s
Éric discovers how to find mathematical patterns in art, architecture and even dance!
Subscription
play_circle

E38 : Temps ensoleillé

3min30s
How do you tell the time without a clock? Éric will show you!
Subscription
play_circle

E39 : A Strong Hold on Perimeters

3min
Want to know how to build the biggest fort you can? Éric reveals the secret in this episode!
Subscription
play_circle

E40 : Le nombre magique

3min30s
Éric the mathemagician knows a trick that is sure to blow your mind! No matter what number you choose, you'll always wind up with the same result.
Subscription
play_circle

E41 : Écrire au miroir

3min
Can you decipher Éric's writing? Here, he reveals the mathemagical mystery behind mirror writing.
Subscription
play_circle

E42 : Les mathématiques sont partout

3min
Put on your mathemagical glasses and tag along with Éric! He shows us that math can be found everywhere! From pineapples to pine cones, we explore how math applies to living objects and natural structures alike.
Subscription
play_circle

E43 : Mini moi-même

3min30s
Would you like to make a self-portrait? Éric knows how to make self-portraits that are perfectly at scale… even if they are tiny.
Subscription
play_circle

E44 : La bonne étoile

3min
Éric, the famous mathemagician, wants to show you how you too can reach for the stars! All you need is folded paper and scissors to create your own perfect five-pointed star. It's not magic... it's mathematics!
Subscription
play_circle

E45 : La grenouille en papier

3min30s
You can turn an ordinary sheet of paper into a three-dimensional jumping frog! It's not magic... it's mathematics!
Subscription
play_circle

E46 : À l'endroit, à l'envers

3min30s
You can amaze your friends with a magic trick using goblets. By following this sequence, you'll be able to pull it off in just three moves!
Subscription
play_circle

E47 : Tous dans le même bateau

3min30s
Sometimes, when you can't seem to solve a problem, you have to get creative. Éric reads a fable to get some inspiration on how to look at a problem from another angle.
Subscription
play_circle

E48 : Écoute bien le problème

3min30s
Look and listen carefully! Éric the mathemagician learns that problem solving is similar to illusions. You really have to pay attention!
Subscription
play_circle

E49 : Chaussette probable

3min30s
Éric uses probability theory and a sock drawer to pull off a mathmagic trick!
Subscription
play_circle

E50 : Tetraèdre

3min
Éric is racking his brains to find out how to place four apple trees so that they are the same distance apart. It's not magic... it's mathematics!
Levels:
Élémentaire 4e année 5e année 6e année
Subjects:
Mathématiques Nombres
Skills:
Communication Pensée critique Résolution de problèmes
French level:
A2 : Intermédiaire ou de survie B1 : Seuil