Uploaded by OUlearn on 10.09.2009

Transcript:

We're going to use that cube activity to make some more complex shapes.

Start exactly as I started before with this Y shape here

and use that in order to help me construct a cubic form.

Those and those and drop that down.

I want to make that into a double vertical cube.

So I can simply take the dimension from there to there

and I do that by estimating on my drawing

where that comes to. Just used my pen as a guide.

And just as I used that line to help form these two lines,

I'm going to use that line to help me inform that line.

And I'm going to use that line to help me guestimate that line.

So what I've done is create a new Y shape

immediately above the previous one.

I can now produce that line there and extend that line.

And using that one I'm beginning to extend them.

So I've created a guestimate of a double cube there.

And that works exactly the same as before

that you could have any Y shape at all.

You would be sketching those in like this.

So it can be quite fast. Project that up.

Make sure you've got the top one the same height as the first one.

Project that across, that across to there.

And you can get rather fast

but effective illustrations of double cubes.

It works the other way around as well.

If I want to put one side by side,

there's my starting point, the Y shape.

There's the shapes for that.

And I can project this line forward now onto here.

And estimate where the front would be,

project that through, project that back, project that back.

And we've got a cube projected forward.

Let's try and demonstrate that again.

Project that line forward.

I'm just estimating where that would come to.

Project that back, project that back to there.

And so we've got double cubes.

And of course I could keep adding on, three cubes.

I could have one going back here.

So we begin to get quite complex shapes

out of putting cubes vertically or horizontally.

I'm going to use both these techniques in the next activity.

Start exactly as I started before with this Y shape here

and use that in order to help me construct a cubic form.

Those and those and drop that down.

I want to make that into a double vertical cube.

So I can simply take the dimension from there to there

and I do that by estimating on my drawing

where that comes to. Just used my pen as a guide.

And just as I used that line to help form these two lines,

I'm going to use that line to help me inform that line.

And I'm going to use that line to help me guestimate that line.

So what I've done is create a new Y shape

immediately above the previous one.

I can now produce that line there and extend that line.

And using that one I'm beginning to extend them.

So I've created a guestimate of a double cube there.

And that works exactly the same as before

that you could have any Y shape at all.

You would be sketching those in like this.

So it can be quite fast. Project that up.

Make sure you've got the top one the same height as the first one.

Project that across, that across to there.

And you can get rather fast

but effective illustrations of double cubes.

It works the other way around as well.

If I want to put one side by side,

there's my starting point, the Y shape.

There's the shapes for that.

And I can project this line forward now onto here.

And estimate where the front would be,

project that through, project that back, project that back.

And we've got a cube projected forward.

Let's try and demonstrate that again.

Project that line forward.

I'm just estimating where that would come to.

Project that back, project that back to there.

And so we've got double cubes.

And of course I could keep adding on, three cubes.

I could have one going back here.

So we begin to get quite complex shapes

out of putting cubes vertically or horizontally.

I'm going to use both these techniques in the next activity.