Mathematical ideas dynamised:
Creating animation in GeoGebra with geometric transformations

- October 30th, 2024  -

Department of Mathematics

University of Bari Aldo Moro, Italy 🇮🇹

Sergio Rubio-Pizzorno | 🇲🇽🇨🇱

Phd student (last year) in Science with specialization in Mathematics Education

GeoGebra Ambassador

Seminar

Créditos

BY

NC

1. Open GeoGebra.

2. Change the view to Geometry.

3. Create a quadrilateral.

4. Create an arbitrary vector.

5. Translate the quadrilateral by the vector.

6. ⚠️Do not close the windows⚠️

Rotation

1. Open (a new window of) GeoGebra.

2. Change the view
   to Geometry.

3. Create a quadrilateral.

4. Create a point outside the quadrilateral.

5. Rotate the quadrilateral around the point by an angle of 180° (counter clockwise).

6. ⚠️Do not close the windows⚠️

1. Go to the Translation  GeoGebra file.

2. Create a slider:

   1. Name: animate

   2. Number.

   3. Interval: 0 to 1.

   4. Increment: 0.1

3. Show the Input Bar.

4. Animate the translation:
   Translate [q1,u*animate]

5. Change the value of the slider.

1. Go to the Rotation  GeoGebra file.

2. Create a slider:

   1. Name: animate

   2. Angle.

   3. Interval: 0° to 180°.

   4. Increment: 1°

3. Show the Input Bar.

4. Animate the rotation:
   Rotate [q1,animate,E]

5. Change the value of the slider.

Basic animation

1. Open (a new window of) GeoGebra.

2. Change the view
   to Geometry.

3. Create a right triangle.

4. Create the squares on their sides.

5. Do the dissection.

6. ⚠️Do not close the windows⚠️

1. Create a single polygon for each dissection.

2. Trace the necessary vector.

3. Modify the animate slider:

   1. Interval: 0 to 5.5

4. Animate each dissection in a concatenated way.