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Les transformations chimiques
Constitution et transformation de la matière
Structure de la matière
Lumière, images et couleurs
L'énergie
Constitution et transformations de la matière
Les états de la matière
Ondes et signaux
Vision et image
Les circuits électriques
Mouvements et interactions
L'organisation de la matière dans l'univers
Énergie : conversions et transferts
Propriétés physico-chimiques
Les signaux
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Nouveaux enjeux et acteurs après la guerre froide
Le xviiième siècle
Les guerres mondiales
Le nouveau monde
Une nouvelle guerre mondiale
La crise et la montée des régimes totalitaires
La guerre froide
Les religions du vième au xvème siècle
Le monde depuis 1945
La 3ème république
Le monde de l'antiquité
La méditerranée de l'antiquité au moyen-age
Le xixème siècle
Révolution et restauration
La france et la république
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Reproduction et comportements sexuels responsables
La géologie
La génétique
Le monde microbien et la santé
Transmission, variation et expression du patrimoine génétique
La planète terre, l'environnement et l'action humaine
La cellule unité du vivant
Alimentation et digestion
Le stress
Procréation et sexualité humaine
Corps humain et santé
Le mouvement
Diversité et stabilité génétique des êtres vivants
Nutrition et organisation des animaux
Unité et diversité des êtres vivants
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Faire la guerre, faire la paix : formes de conflits et modes de résolution
Analyser les dynamiques des puissances internationales
L’environnement, entre exploitation et protection : un enjeu planétaire
Comprendre un régime politique : la démocratie
S’informer : un regard critique sur les sources et modes de communication
Histoire et mémoires
S’informer : un regard critique sur les sources et modes de communication
Analyser les relations entre états et religions
Étudier les divisions politiques du monde : les frontières
De nouveaux espaces de conquête
L’enjeu de la connaissance
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Jane
@jane_hsgr
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This document provides an overview of geometric transformations in mathematics, focusing on various types of symmetry and transformations. The content is particularly relevant for students preparing for the Brevet des collèges exam in mathematics.
Key points:
The document includes visual representations and brief explanations for each transformation type, making it a useful Fiche révision maths brevet PDF resource.
18/03/2022
1128
This page presents a comprehensive overview of five fundamental geometric transformations, essential for students preparing for the Brevet des collèges mathematics exam. Each transformation is illustrated with a diagram and a brief explanation, making it an excellent Fiche révision brevet maths PDF 2023 resource.
The first transformation discussed is axial symmetry. The diagram shows a point F and its image F' reflected across an axis (d). This transformation is crucial in understanding reflections and mirror images in geometry.
Definition: Axial symmetry is a transformation that reflects a figure across a line, creating a mirror image.
The second transformation illustrated is translation. The diagram depicts a point F being moved to a new position F' through a translation vector.
Vocabulary: A translation is a transformation that moves every point of a figure the same distance in the same direction.
Homothety is the third transformation presented. The diagram shows a point F being transformed to F' with respect to a center O.
Highlight: Homothety is a transformation that enlarges or reduces a figure while maintaining its shape, often used in scaling problems.
The fourth transformation is central symmetry. The diagram shows a triangle ABC being transformed into A'B'C' around a center point O.
Example: In central symmetry, each point of the original figure is rotated 180° around the center point.
The final transformation discussed is rotation. The diagram illustrates a triangle ABC being rotated 30° counterclockwise around a center point to form A'B'C'.
Vocabulary: Rotation is a transformation that turns a figure around a fixed point by a certain angle.
This page serves as an excellent Fiche de révision maths 3ème brevet, providing clear visual representations and concise explanations for each geometric transformation. It's particularly useful for students reviewing Exercices brevet maths par thème related to transformations and symmetry.
Note moyenne de l'appli
Les élèsves utilisent Knowunity
Dans les palmarès des applications scolaires de 12 pays
Les élèves publient leurs fiches de cours
Louis B., utilisateur iOS
Stefan S., utilisateur iOS
Lola, utilisatrice iOS
Jane
@jane_hsgr
·
38 Abonnés
Suivre
This document provides an overview of geometric transformations in mathematics, focusing on various types of symmetry and transformations. The content is particularly relevant for students preparing for the Brevet des collèges exam in mathematics.
Key points:
The document includes visual representations and brief explanations for each transformation type, making it a useful Fiche révision maths brevet PDF resource.
This page presents a comprehensive overview of five fundamental geometric transformations, essential for students preparing for the Brevet des collèges mathematics exam. Each transformation is illustrated with a diagram and a brief explanation, making it an excellent Fiche révision brevet maths PDF 2023 resource.
The first transformation discussed is axial symmetry. The diagram shows a point F and its image F' reflected across an axis (d). This transformation is crucial in understanding reflections and mirror images in geometry.
Definition: Axial symmetry is a transformation that reflects a figure across a line, creating a mirror image.
The second transformation illustrated is translation. The diagram depicts a point F being moved to a new position F' through a translation vector.
Vocabulary: A translation is a transformation that moves every point of a figure the same distance in the same direction.
Homothety is the third transformation presented. The diagram shows a point F being transformed to F' with respect to a center O.
Highlight: Homothety is a transformation that enlarges or reduces a figure while maintaining its shape, often used in scaling problems.
The fourth transformation is central symmetry. The diagram shows a triangle ABC being transformed into A'B'C' around a center point O.
Example: In central symmetry, each point of the original figure is rotated 180° around the center point.
The final transformation discussed is rotation. The diagram illustrates a triangle ABC being rotated 30° counterclockwise around a center point to form A'B'C'.
Vocabulary: Rotation is a transformation that turns a figure around a fixed point by a certain angle.
This page serves as an excellent Fiche de révision maths 3ème brevet, providing clear visual representations and concise explanations for each geometric transformation. It's particularly useful for students reviewing Exercices brevet maths par thème related to transformations and symmetry.
Maths - les expressions littérales et la symétrie axiale/centrale
maths
39
959
2
Maths - agrandissement et réduction
agrandissement et réduction de figures
70
1770
0
Maths - la translation
définition et exemple
7
234
0
Maths - Transformation géométrique
Symétrie axiale / symétrie centrale / translation /homothéties /rotation
51
914
1
Note moyenne de l'appli
Les élèsves utilisent Knowunity
Dans les palmarès des applications scolaires de 12 pays
Les élèves publient leurs fiches de cours
Louis B., utilisateur iOS
Stefan S., utilisateur iOS
Lola, utilisatrice iOS
