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Tutorial sobre simetría - Contenido educativo

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Subido el 16 de agosto de 2023 por Alicia G.

7 visualizaciones

Breve tutorial sobre cómo decorar una calavera mexicana usando la función de simetría axial en GeoGebra.

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We'll see today how to create a reflection using the GeoGebra program. 00:00:04
Okay, this is the exercise I have shared with you. 00:00:10
And to open it and edit it, you have to go here over these three dots, click, and then open with GeoGebra. 00:00:13
Okay, that way you can edit everything. 00:00:24
Okay, and here we are. 00:00:29
This is the skull I have to decorate, and to do so, I can either use this tool, polygon, or the pencil that we will see in a bit. 00:00:30
To create a polygon, just click on that, make any random figure that you like, for example, a star, and close it. 00:00:42
Now, this looks very ugly because it has all of the tags, all of the letters, and I don't want it to look that way. 00:00:52
So I'm going here to Edición, and I'm going to click on this tool, Hide or Show an Object. 00:01:00
I click on that, and then I click over each and every point there is. 00:01:07
When I change my tool back again to the arrow, the Move tool, the points disappear and I have a clear star. 00:01:17
okay now if i want to change the color of my star i have to click on it with the move tool 00:01:24
and i have four options and then three dots i'm going to click on the first one which looks like 00:01:32
a bucket of paint and here i have seven seven different colors and a plus and a bar here this 00:01:39
is the opacity level, okay? The transparency of the color. And I want it to be full, so I set it 00:01:48
at 100. And then I can either choose one color here, or I can go to the plus button and choose 00:01:55
any of these. In this case, I'm going to choose this light yellow, okay? Cool. Now I have one 00:02:03
ornament and i want to reflect it on the other side so i'm going below to transformation tools 00:02:13
and here i have translation which we did the other day but the complicated way and i have also 00:02:22
rotation and symmetry there's two kinds of symmetry okay i'm going to pick the first one 00:02:28
which uses an axis so with that tool clicked 00:02:34
i go to the star click and then to my axis 00:02:39
me which is this straight line and the star duplicates reflected on the 00:02:43
other side okay okay i'm going to do the same using 00:02:50
another tool take the pencil tool which is here behind 00:02:55
my portrait and there's this one below others lapis and for example i'm going to draw this 00:03:01
kind of flower around the school eye and this shape this is not actually a shape this is going 00:03:10
to be a line and as such i can only color the line not the interior space okay once i have it 00:03:18
I can go with the move tool. I don't have any letter tags because there's no point 00:03:29
and I can change the color again just the color of the line because it hasn't got any depth. 00:03:36
I'm going to choose that color for example click anywhere on the screen and now I'm going to 00:03:43
reflect it on the other side. I go to Transformaciones, Transformations here, 00:03:48
Simetria Axial, click on my flower, click on the straight line, and there I've got it. 00:03:57
Now, to save this on my GeoGera account, right now you can see I'm not in my account, but I would go 00:04:04
here and click as save, guardar, just that. 00:04:12
But if I want to upload it to Classroom as an image, 00:04:16
I have to click here, export that image. 00:04:21
Export the image. 00:04:24
I click, then a screenshot of the paper, 00:04:26
of the part of the screen I'm seeing is saved, 00:04:31
and I can download it to my folder, and that is that. 00:04:34
Idioma/s:
en
Autor/es:
Alicia Gastesi Carreras
Subido por:
Alicia G.
Licencia:
Todos los derechos reservados
Visualizaciones:
7
Fecha:
16 de agosto de 2023 - 17:43
Visibilidad:
Clave
Centro:
CPR INF-PRI-SEC ENRIQUETA AYMER
Duración:
04′ 40″
Relación de aspecto:
1.53:1
Resolución:
1104x720 píxeles
Tamaño:
50.72 MBytes

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