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

Comparer des masses

S1 E27
·
2018

This video introduces the concept of mass (to be distinguished from weight) and how to compare them. They discover the Roberval balance and how it works. The exercises proposed allow them to find the heaviest and lightest objects. They also ask to place objects according to the position of the scale.

Levels:
Élémentaire 1re année 2e année 3e année
Subjects:
Mathématiques Sens de l'espace
Skills:
Apprentissage autonome Pensée critique Résolution de problèmes
French level:
A2 : Intermédiaire ou de survie B1 : Seuil
Subscription
play_circle

E63 : Se repérer sur un quadrillage

5 min 6 s
Students learn to find their way around a grid by knowing the concepts of column, row and square. They cross the columns and rows to find the box and code it as (A,1). Conversely, they must locate a square based on the location code.
Subscription
play_circle

E64 : Soustractions posées sans retenues

3 min 48 s
This video aims to teach you how to do subtraction without carryovers. The idea is to understand that subtraction is only to be done in certain situations (1000-980 or 100-18 are not included, for example). The students must then remember to line up the units, tens, etc. After placing the numbers with the largest above, they calculate…
Subscription
play_circle

E65 : Unités de longueur (cm, m, km)

5 min 20 s
After comparing lengths in direct and indirect comparison, this video discusses the units of measurement for length. We see what a centimeter, a meter and a kilometer correspond to. Students learn that it is necessary to adapt the unit of measurement to what is being measured. They also discover the tools that are useful for measuring…
Subscription
play_circle

E66 : Utiliser la règle

2 min 39 s
How to draw a straight line? How to hold your ruler? These are the two questions that this video will answer. It's all about positioning your fingers well on your ruler and sticking to the ruler with your pencil (well sharpened). I also show how to draw vertical lines for right and left handed people. Two cards are included with…
    Levels:
    Élémentaire 1re année 2e année 3e année
    Subjects:
    Mathématiques Sens de l'espace
    Skills:
    Apprentissage autonome Pensée critique Résolution de problèmes
    French level:
    A2 : Intermédiaire ou de survie B1 : Seuil