Découvertes externes

Emmanuel Auclair, Apr 30, 2020

Recueil des découvertes, mathématiques au secondaire.

Table of Contents

  1. Meli-Melo
    1. Finding the Treasure on the Coordinate Plane
    2. Plotting Points on the Coordinate Plane
    3. Horizontal and Vertical Paths Using a City Bus Route Simulation
    4. Finding the Treasure in Four Quadrants
    5. Drawing Quadrilaterals Using Properties
    6. Sum of Interior Angles of a Triangle
    7. Sum of Exterior Angles of a Polygon
    8. Hauteur de l'antenne du phare triangles semblables
    9. Finding the Distance Between Two Points Using the Pythagorean Theorem
    10. Identifying Right Triangles Using the Pythagorean Theorem
    11. Identifying Decimals to the Tenths Place on a Number Line
    12. Identifying Decimals to the Hundredths Place on a Number Line
    13. Multiplying 2-Digit Numbers Using Partial Products
    14. Multiplying up to Two-Digit Multiples of 10
    15. Multiplication and Division Estimation Game
    16. Multiplying Multi-Digit and 1-Digit Numbers Using Partial Products
    17. Additive Inverse
    18. Card Sort: Multiplying and Dividing Integers
    19. Solving Systems of Linear Equations Graphically
    20. Solving One-Variable Equations: Hot and Cold Activity
    21. Visualizing Algebraic Equations Using a Balance Beam
    22. Solving One-Step Equations with a Tape Diagram
    23. Solving Two-Step Equations
    24. Using Order of Operations to Create Numerical Expressions
    25. Simplifying Algebraic Expressions
    26. Visualizing Equivalent Fractions Using Models
    27. Locating Proper and Improper Fractions on a Number Line
    28. Comparing Fractions Using a Benchmark
    29. Percentages and Equivalent Fractions and Decimals
    30. Finding the Missing Values in Percentage Relationships Using Tape Diagrams
    31. Setting Up a Percent Proportion
    32. Visualizing the Area of a Circle and its Formula
    33. Calculating Volume with Invisible Cubes
    34. Connecting Volumes of Pyramids and Prisms Using Visual Models
    35. Calculating the Circumference of a Circle
  2. Solides
    1. Nets of the Cube
    2. Patron du pavé droit - version 2
    3. Trois pyramides
    4. Surface Area: Intuitive Introduction
    5. Open Middle (Revamped): Creating Rectangular Prisms with a Given Surface Area
    6. Patron du cylindre en 3D
    7. Unwrapping a Cylinder: REVAMPED!
    8. Développement d'un prisme
    9. Développement d'une pyramide
    10. Développement d'un cône
    11. Open Middle: Surface Area and Percent (no feedback version)
    12. Open Middle: Surface Area and Percent
  3. Fonctions
    1. Trace de la fonction sinus
    2. Définir polynôme degré 2
    3. Perpendicular Lines and Slope: Open Middle
    4. Make a Linear Function
    5. Parallel Lines and Slope: Open Middle
  4. Géométrie
    1. Relation de Pythagore - Illustration
    2. Propriétés des quadrilatères
    3. Congruent Segments: Quick Exploration
    4. Open Middle Triangle Angle Sum Problem
    5. Open Middle Triangle Angle Sum Problem (V2)
    6. Similar Shapes
    7. Creating Distances in 3 Space: Quick Formative Assessment
  5. Autres
    1. Open Middle: Creating Triangles
    2. Sums to 100
    3. Close to 1000
    4. numération graduée

1.

Meli-Melo

En provenance des ressources math. de Geogebra [url]https://www.geogebra.org/math?pk_vid=1698852352f4dca7[/url]

  • 1. Finding the Treasure on the Coordinate Plane
  • 2. Plotting Points on the Coordinate Plane
  • 3. Horizontal and Vertical Paths Using a City Bus Route Simulation
  • 4. Finding the Treasure in Four Quadrants
  • 5. Drawing Quadrilaterals Using Properties
  • 6. Sum of Interior Angles of a Triangle
  • 7. Sum of Exterior Angles of a Polygon
  • 8. Hauteur de l'antenne du phare triangles semblables
  • 9. Finding the Distance Between Two Points Using the Pythagorean Theorem
  • 10. Identifying Right Triangles Using the Pythagorean Theorem
  • 11. Identifying Decimals to the Tenths Place on a Number Line
  • 12. Identifying Decimals to the Hundredths Place on a Number Line
  • 13. Multiplying 2-Digit Numbers Using Partial Products
  • 14. Multiplying up to Two-Digit Multiples of 10
  • 15. Multiplication and Division Estimation Game
  • 16. Multiplying Multi-Digit and 1-Digit Numbers Using Partial Products
  • 17. Additive Inverse
  • 18. Card Sort: Multiplying and Dividing Integers
  • 19. Solving Systems of Linear Equations Graphically
  • 20. Solving One-Variable Equations: Hot and Cold Activity
  • 21. Visualizing Algebraic Equations Using a Balance Beam
  • 22. Solving One-Step Equations with a Tape Diagram
  • 23. Solving Two-Step Equations
  • 24. Using Order of Operations to Create Numerical Expressions
  • 25. Simplifying Algebraic Expressions
  • 26. Visualizing Equivalent Fractions Using Models
  • 27. Locating Proper and Improper Fractions on a Number Line
  • 28. Comparing Fractions Using a Benchmark
  • 29. Percentages and Equivalent Fractions and Decimals
  • 30. Finding the Missing Values in Percentage Relationships Using Tape Diagrams
  • 31. Setting Up a Percent Proportion
  • 32. Visualizing the Area of a Circle and its Formula
  • 33. Calculating Volume with Invisible Cubes
  • 34. Connecting Volumes of Pyramids and Prisms Using Visual Models
  • 35. Calculating the Circumference of a Circle

1.1.

Finding the Treasure on the Coordinate Plane

Plot the point of a coordinate pair on a map to uncover hidden treasure.
– GeoGebra Content Team

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2.

Solides

  • 1. Nets of the Cube
  • 2. Patron du pavé droit - version 2
  • 3. Trois pyramides
  • 4. Surface Area: Intuitive Introduction
  • 5. Open Middle (Revamped): Creating Rectangular Prisms with a Given Surface Area
  • 6. Patron du cylindre en 3D
  • 7. Unwrapping a Cylinder: REVAMPED!
  • 8. Développement d'un prisme
  • 9. Développement d'une pyramide
  • 10. Développement d'un cône
  • 11. Open Middle: Surface Area and Percent (no feedback version)
  • 12. Open Middle: Surface Area and Percent

2.1.

Nets of the Cube

Anthony Or[br]GeoGebra Institute of Hong Kong.
– Anthony OR 柯志明

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3.

Fonctions

  • 1. Trace de la fonction sinus
  • 2. Définir polynôme degré 2
  • 3. Perpendicular Lines and Slope: Open Middle
  • 4. Make a Linear Function
  • 5. Parallel Lines and Slope: Open Middle

3.1.

Trace de la fonction sinus

Lien entre la valeur de sinus dans le cercle trigonométrique et sa fonction sinusoïdale.
– Gilles Coulombe

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Géométrie

  • 1. Relation de Pythagore - Illustration
  • 2. Propriétés des quadrilatères
  • 3. Congruent Segments: Quick Exploration
  • 4. Open Middle Triangle Angle Sum Problem
  • 5. Open Middle Triangle Angle Sum Problem (V2)
  • 6. Similar Shapes
  • 7. Creating Distances in 3 Space: Quick Formative Assessment

4.1.

Relation de Pythagore - Illustration

Illustration de la relation de Pythagore.
Relation de Pythagore - Illustration
– Dave Leclerc

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Autres

  • 1. Open Middle: Creating Triangles
  • 2. Sums to 100
  • 3. Close to 1000
  • 4. numération graduée

5.1.

Open Middle: Creating Triangles

Move the number boxes on the left side to build a triangle with the given formatted side lengths. [br]Once you fill in all six boxes with number tiles, a triangle may (or may not) appear on the right side. [br][br]If a triangle [i]does[/i] appear on the right side, it will be built to scale.
Can you create an ACUTE triangle here? Try to do so!
In the space below, algebraically show (A) how you know this triangle even exists and (B) how you know this triangle is ACUTE.
Can you create an OBTUSE triangle here? Try to do so!
In the space below, algebraically show (A) how you know this triangle exists and (B) how you this triangle is OBTUSE.
Challenge: Can you create an RIGHT triangle here? Try to do so!
In the space below, algebraically show (A) how you know this triangle exists and (B) how you know this triangle is a RIGHT triangle.
– Tim Brzezinski

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