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Les arches et les arcs

S1 E3
·
2014

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:
Elementary Grade 3 Grade 5
Subjects:
Mathematics Spatial Sense Science and technology Structures and Mechanisms Matter and Energy
Skills:
Problem Solving Critical Thinking
Themes:
STEAM
French level:
A1: Breakthrough Basic User (A1 - A2) A2: Waystage
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E1 : Cônes

24min1s
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

24min1s
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

24min
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

24min
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

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

24min
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

24min
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

24min
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

24min
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

24min
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

24min
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

24min
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

24min
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

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

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.

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Levels:
Elementary Grade 3 Grade 5
Subjects:
Mathematics Spatial Sense Science and technology Structures and Mechanisms Matter and Energy
Skills:
Problem Solving Critical Thinking
Themes:
STEAM
French level:
A1: Breakthrough Basic User (A1 - A2) A2: Waystage