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Videoconferencia: Exercices about the views of an object - Contenido educativo

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Subido el 15 de enero de 2021 por David G.

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So we are recording. So there are four exercises to correct. Okay. And these exercises are here. This is the first one. This block is turning. We can stop it if we click on it. I will click on it. And the moment I have clicked on it, the block has stopped turning. If I click again on it, I can rotate it. I can make it rotate it by myself. Just clicking and dragging. 00:00:00
this object is the same than this one 00:00:29
the front view will be the pink one 00:00:31
I think in the instructions I gave to you it was wrong 00:00:38
I think I said that the blue one is the front view 00:00:41
it's not a big problem, ok? 00:00:45
no, anyway, I'm sorry, I'm sorry 00:00:50
yes, we are going to consider that this one is the front view 00:00:51
the blue is the front view, I'm sorry 00:00:56
I was right the first one 00:00:57
The blue one is the front view, because there are several possibilities. 00:01:00
I can consider that this one is the front view, or I can consider that this one is the front view. 00:01:05
But don't worry, we will talk about the different possibilities later in the future, when we are back in the classroom. 00:01:10
But for the moment, I will consider that the blue one is the front view. 00:01:17
So, if I look at the object from the front view, I will be able to see something like that. 00:01:21
Do you agree? 00:01:28
if I rotate the object I will be able to see the object this way so the front 00:01:28
view will be a kind of L I will draw the front view here using this pencil I can 00:01:34
draw it and you see that I'm drawing it so this is the front view now if I move 00:01:43
to the right no I made a mistake I made a mistake don't worry the front view 00:02:01
okay the front view is not this one because I will change my my criteria I 00:02:10
will think I will consider that this is the front view the blue one okay the 00:02:18
pink one I mean why because the left view will be drawn on the right it's a 00:02:22
common mistake usually to avoid this mistake you will find an arrow against 00:02:28
an arrow flecha pointing the front view here there is no arrow but from this moment we know 00:02:32
that in this web page the front view is the pink one so if this is the front view my front view 00:02:39
will be something like that there will be two pieces of flat surfaces so my front view will be 00:02:48
this one i will try it again i think you will agree with this drawing anyway if you have 00:02:56
questions you will be able to ask later so this is the front view okay to draw the left side view 00:03:08
we will rotate the object this way and the left side view will be the one i was drawing before 00:03:17
the left side view is drawn on the right you don't know why for the moment well we will talk about it 00:03:25
later in the future okay so for the moment don't worry front view here left side view here on the 00:03:31
right. I repeat, this is the front view, this is the left side view. 00:03:39
This web page is really useful because I can rotate the object. And the top view 00:03:43
will be this one. Can you see? I'm rotating the object, I'm 00:03:47
looking at the object from above, so the top view will be something 00:03:51
like that. I will draw. So, this is the correction 00:03:55
for the first exercise. Front view here, left 00:04:08
side view here on the right, top view here at the bottom. 00:04:13
I repeat, in the future we will understand why these are the correct positions for everyone. 00:04:15
So, this is the correction for the first exercise. 00:04:21
Now, I will move on. I will start with the correction of the second one. 00:04:24
So, this is the second object. 00:04:31
Again, the object is rotating, just to avoid us to have a full view of it. 00:04:35
Anyway, if I click on it, I can stop it and again I will start. 00:04:43
If I'm looking at the object from this position, can you see the arrow of my pointer? 00:04:47
This is the front view. And what will I be able to see from the front view? 00:04:52
Something like that. So, my front view will be something like that. 00:04:56
There are two different surfaces, so my front view has two squares. 00:05:01
Well, not two squares, two pieces of surfaces. 00:05:06
this is the front view side view to look at the side view i will rotate the object this way 00:05:15
i will be able i will be able to look at the object from this position so this is my 00:05:23
side view i will be able to see something like that i there is only one surface 00:05:31
way so that's why I will only draw a single surface there are no lines in the 00:05:37
middle so this is the left side view and the left side view is drawn on the right 00:05:48
I go back to the original position this is the front view this is the side view 00:05:56
and to be able to look at the object from above I will rotate the object this 00:06:02
way and this one will be the top view this surface and this one so this one 00:06:07
will be the top view when we draw the front left and top view we don't try to 00:06:16
draw perspectives we don't have to fraud front I mean side and top view are flat 00:06:23
surfaces so this is the top view of the object okay fine perfect you agree okay 00:06:30
later you will be able to ask questions let's move on this is the correction of 00:06:38
the second exercise I will move I will move on and I we will start with the 00:06:42
third one click on it and this is the third object a little bit more 00:06:48
complicated but just a little bit an easy one it's rotating I will stop it 00:06:54
the rotation, and now I have the same object here than here. Front view. 00:06:59
The front view is the one that 00:07:04
I will look at the object from this position, the one that is pointing 00:07:06
the arrow. So, to draw the front view, I will rotate 00:07:11
the object this way, and I will have three different 00:07:15
surfaces. This one, this one, and this one. So, that's why I will draw 00:07:19
the front view this way. This part is this one, 00:07:23
the second part, the one on the 00:07:30
right top, top right is here 00:07:34
this is the top right part and now 00:07:38
third part is the one at the bottom, so this is the front 00:07:44
view, ok? this is the object and I look at the object from 00:07:54
this position, the front view will be this one 00:08:00
now, I will draw the left side view, I will draw 00:08:03
on the right so I will rotate the object this way and I will be able to see two surfaces this one 00:08:08
a kind of L and this kind of triangle two different surfaces I draw it this way this 00:08:16
is the kind of L so this one is this one and now the triangle here so this is the left side view 00:08:23
that has been drawn on there right and now if this is the front and this is the side view 00:08:43
the two view will be looking at the object from above and this one will be the top view again 00:08:51
three surfaces this one this one and this one and i will draw them this way 00:08:57
this one is this one this one is this one and now what i'm going to draw this one 00:09:15
And I repeat, here I don't try to draw kind of perspective, because the views of an object are flat surfaces, okay? 00:09:21
We consider that we are far enough from the object to be able, I mean, to see the different surfaces like flat surfaces, okay? 00:09:34
So, these are the front view, the left side view, and the top view of the object, okay? 00:09:44
So, this is the correction for the third exercise. 00:09:50
and now I will move on and I will do the fourth one and this is the fourth one 00:09:54
again is rotating to allow us to have a full view of the object I will stop it 00:10:00
and again this is the front view the one I when I'm looking at the object from 00:10:06
the position of the arrow I will be able to see the front view the pink one so I 00:10:13
rotate the object this way then I will draw it. There are two surfaces this one 00:10:19
and this one so the smaller one is here top left here here is the surface is 00:10:26
this one and now the kind of L will be this one okay so this is the front view 00:10:36
the L here and this part here now I will draw the left side view I will rotate 00:10:47
the object, I mean the left side view, when we are looking at the object from the left 00:10:55
we are looking at the object from this position, the one of my pointer 00:10:58
and it means that we will be able to see something like that 00:11:03
there will be two surfaces, this one, kind of L again 00:11:07
and this square, so I will draw them, it looks like the 00:11:11
front view, but it's not the same one, because the position of the 00:11:20
smaller square is different, the smaller square here 00:11:23
is on the top left, it's not on the top, I mean, here now is on the 00:11:28
top right, not on the top left like before. And the L, 00:11:32
the shape of the L, is not exactly the same. They look similar, but 00:11:36
they are not exactly the same. The top, I mean, the front view, 00:11:40
the pink one, and the side view, the blue one. And now, if this 00:11:44
is the front view, and this is the side view, the top view 00:11:48
will be something like that. I can rotate the object this way, and 00:11:52
I will be able to look at the object from above. There will be 00:11:56
two surfaces. This one, kind of L, and again, the smaller 00:12:00
square. So I will draw the first one, the smaller 00:12:04
square. The three views of this object, they look similar 00:12:08
but they are different. Because of the position of the small square is 00:12:17
different. Now the smaller square is on the bottom left. 00:12:21
So these are the front view, 00:12:25
left side view and top view of my object, ok? So these are the corrections of the exercises I sent to you. 00:12:29
Ok, let's correct this fifth exercise. Again, we have the object, the 3D object, and we will consider that this one is the front view. 00:12:37
When we are looking at the object from this position, this is the front view, ok? 00:12:51
So, front view here. I will rotate the object this way and I will draw the front view here, on this part. 00:12:56
There are three surfaces. This one, this one and this one. 00:13:05
I will consider that there are three flat surfaces because I'm far enough to see them like flat surfaces. 00:13:10
I will start drawing them. The one on the top left, the one on the top right and the long one on the bottom. 00:13:19
This square, this square, this square. This one is this one. Now, this one. The one on the top right. And now the one on the bottom. So, this is the front view. 00:13:26
I go back to the original perspective, the original view, the one with the three perspectives, and now I will draw the side view. 00:13:50
There are two different flat surfaces. This one, the one with, I mean, this is a kind of L, and this one that is a kind of triangle, but different from the triangles we saw before, some minutes ago. 00:14:00
now I'm going to draw the kind of L this way and now I'm going to draw the 00:14:17
triangle from this position to the middle of this one this is the side view 00:14:28
do you agree and now I go back to the original position I move to the front 00:14:32
and I will rotate I will fly from this position there are three flat surfaces 00:14:37
this one, this one and this one, I will start with the top left 00:14:44
this square, now 00:14:48
the bottom left square, this one, this one here 00:14:54
and now the surface on the right, this one, the long one 00:14:58
so these are the three views of my object 00:15:04
front, side and top, ok? 00:15:11
so, let's correct the sixth object 00:15:16
again, we are going to consider that this one is the front view, if we are locking up the object 00:15:19
from this position, the one that I'm showing with the arrow, so if I'm looking at the 00:15:23
object from this position, the front view will be something like 00:15:28
that, we have a 00:15:32
top left square here, a top right square here, and a 00:15:35
bottom rectangle here, so I will draw the three of them 00:15:40
this one is this one, now this one will be 00:15:43
this one, and the one on the bottom will be 00:15:51
this one, so this is the front view, I go back to the 00:15:57
original position, the one with the perspective, and now I will rotate 00:16:05
to look at the object from this position, the one I'm pointing with the arrow 00:16:09
so this one will be the left side view 00:16:12
that is drawn on the right, I will start here 00:16:17
here, here, here, and now 00:16:21
this is the this is the first surface the bigger one and now i'm going to draw the smaller one 00:16:29
this is the smaller one okay this is the left side view that is drawn on the right and now 00:16:39
i go back to the original position i move to the front and now i will rotate this way so 00:16:45
this is the top view there are three surfaces the this is the top right square i will draw it 00:16:52
This is the bottom, I mean, yes, the bottom right square, I will draw it, and now the left rectangle, and these are the three views of the object, ok? 00:16:59
Autor/es:
David Gonzalez Arroyo
Subido por:
David G.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
103
Fecha:
15 de enero de 2021 - 13:34
Visibilidad:
Público
Centro:
IES MARIE CURIE Loeches
Duración:
17′ 25″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
42.71 MBytes

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