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Les arches et les arcs

Teaching Tools
S1 E3
·
2014
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Expires on: 

Jean-François is trying to understand why arches are so strong. How does gravity hold them in place without glue or cement? To find out, children investigate their neighbourhoods for arches. Others are challenged to build a large arch and test its resistance to weight. Jean-François talks to a medieval mason about the use of arches and buttress arches.

Levels:
Élémentaire 3e année 5e année
Subjects:
Mathématiques Sens de l'espace Sciences et technologie Matière et énergie Structures et mécanismes
Skills:
Pensée critique Résolution de problèmes
Themes:
STIAM
French level:
A1 : Introductif ou découverte A2 : Intermédiaire ou de survie
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E1 : Cônes

24 min 1 s
Jean-François gets ready for his party and discovers cones all around him. Two friends find cone shapes in their neighborhood. During a challenge, children explore how sound travels in a cone.
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E2 : Cartographie

24 min 1 s
Jean-François discovers cartography, grids, scales and symbols. Children explore maps in their neighborhoods and learn how to plot the shortest subway route. Come and discover the different uses of maps!
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E3 : Les arches et les arcs

24 min
Jean-François is trying to understand why arches are so strong. How does gravity hold them in place without glue or cement?
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E4 : Cylindres musicaux

24 min
Jean-François is determined to find out why so many musical instruments, such as flutes, horns and organs, are made of cylinders.
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E5 : Sphères

24 min
Spheres are everywhere! Jean-François wonders why bubbles are always round. What makes spheres so special?
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E8 : Spirales

24 min
But what makes spirals so captivating? To find out, Jean-François discovers the different types of spirals, including the helix, a three-dimensional spiral.
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E9 : Projectiles de sport

24 min
Jean-François tries to juggle a soccer ball, a baseball and a field hockey puck, but quickly loses control. All these sports projectiles have different shapes and sizes.
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E10 : L'aérodynamique

24 min
While experimenting with geometry and paper airplanes, Jean-François notices that the shape of the airplane influences the way it flies.
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E11 : Les dômes

24 min
Jean-François receives the Coco egg. Why is an egg so strong when you squeeze it hard but so easily broken when you drop it? It's because the top and bottom of the egg are dome-shaped! To test the domes, participants walk on eggs, JF meets an architect from ancient Rome and a chick tries to break out of its shell.
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E12 : Les coins

24 min
The wedge is an important invented tool. This simple machine takes the form of a prism with a triangular base and contains two inclined planes.
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E13 : Dallage

24 min
Paving consists of geometric shapes that touch without leaving any gaps or overlapping. Two investigators go in search of paving by finding everyday objects.
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E14 : Les cubes

24 min
Cubes are everywhere! Two young investigators look for cubes in everyday objects. Participants take up the challenge of creating a giant cube from cardboard boxes.
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E15 : Les lentilles

24 min
What can you see with lenses? Two investigators go in search of the lenses in everyday objects. Jean-François deconstructs a lens and explains that it contains two spherical caps.
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E16 : La symétrie

24 min
The human brain likes symmetrical things! Some living things and structures are symmetrical, such as the monarch butterfly and the Taj Mahal.

Fiche d'activité C'est wow! - Arches à partir de prismes trapézoïdaux

Arches are very stable geometric shape. For this activity, the student will build a paper arch with building blocks called trapezoidal prisms, which he will make himself.

    Levels:
    Élémentaire 3e année 5e année
    Subjects:
    Mathématiques Sens de l'espace Sciences et technologie Matière et énergie Structures et mécanismes
    Skills:
    Pensée critique Résolution de problèmes
    Themes:
    STIAM
    French level:
    A1 : Introductif ou découverte A2 : Intermédiaire ou de survie