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Les arches - Reconstruction

S1 E3
·
2015

The arches are built using trapezoidal prisms called "voussoirs". Each side of the arch should be symmetrical so that the weight of the structure is evenly distributed.

Levels:
Elementary Grade 2 Grade 3 Grade 5
Subjects:
Mathematics Spatial Sense Science and technology Matter and Energy Structures and Mechanisms
Skills:
Communication Critical Thinking
French level:
A1: Breakthrough Basic User (A1 - A2) A2: Waystage
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E1 : Les cônes - Déconstruction

31s
This capsule allows you to discover that the cone is a right-angled triangle pivoting on an axis.
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E2 : Terre - Déconstruction

46s
Jean-François observes the Earth while it is represented in a deconstructed way. On a map, the continents and oceans are distorted.
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E3 : Les arches - Reconstruction

1min11s
The arches are built using trapezoidal prisms called "voussoirs". Each side of the arch should be symmetrical so that the weight of the structure is evenly distributed.
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E4 : Les cylindres - Déconstruction

40s
The cylinder is composed of a slender rectangular face with two circular bases. The organ is not the only instrument to use cylinders. Do you know any others?
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E5 : Les triangles - Déconstruction

31s
Is the triangle the secret behind the solidity of the pyramids? Jean-François presents a type of pyramid. Can you describe its characteristics and name it?
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E6 : Les sphères - Déconstruction

1min19s
A sphere is a three-dimensional circle. In this capsule, Jean-François explains how to find the radius of a circle.
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E7 : La tour Eiffel - Déconstruction

29s
The structure of the Eiffel Tower is an assembly of all kinds of triangles. Do you know why triangles are used as much in construction?
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E8 : Les spirales - Déconstruction

40s
Jean-François states that the spirals captivate him. Have you ever seen spirals in nature or in works of art?
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E9 : Les lentilles - Déconstruction

1min3s
Lenses do not all have the same shape but allow the trajectory of the light to be modified.
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E10 : La symétrie - Déconstruction

40s
Jean-François present a symmetrical car with smooth contours. Do you know what one calls an object that cuts through the air easily?
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E11 : Les arcs - Déconstruction

46s
109 / 5¿000 Résultats de traduction Résultat de traduction By superimposing arcs, a dome can be obtained. Jean-François demonstrates this using an egg.
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E12 : Les projectiles - Déconstruction

1min31s
Come and discover the different forms that sports projectiles take.
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E14 : Les dallages - Déconstruction

33s
In a paving, the shapes touch each other without overlapping. You can find sequences and patterns in it.
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E15 : Les coins - Déconstruction

35s
The wedge is one of the most important tools ever invented. Jean-François presents the development of this prism.
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E16 : Les axes de symétrie - Déconstruction

1min24s
Objects can be symmetrical in different ways. Do you know any symmetrical objects?
Levels:
Elementary Grade 2 Grade 3 Grade 5
Subjects:
Mathematics Spatial Sense Science and technology Matter and Energy Structures and Mechanisms
Skills:
Communication Critical Thinking
French level:
A1: Breakthrough Basic User (A1 - A2) A2: Waystage