Lesson video

Hello, everybody.

Welcome to computing.

It's Mrs. Franzsen here.

It's really great to have you in my lesson today.

We are going to be doing some learning about 3D objects.

Are you ready?

Then let's get started.

This lesson is called "Modifying 3D Objects," and by the end of this lesson, you'll be able to identify that digital 3D objects can be modified.

Let's look at our keywords for this lesson.

Our keywords are really important terms that we'll be using all the way through the lesson, so make sure you're listening carefully and that you can understand the keyword and the definition so that when it comes up in the lesson, you know what we're talking about.

The first keyword is "handle.

" A handle is a shape that indicates when an object is selected and that can be used to move and resize an object.

The second keyword is "resize.

" To resize something is to change the size.

Our final keyword is "recolor.

" To recolor something means to change the colour of that thing.

In the first part of the lesson, you will resize an object in three dimensions.

In Tinkercad, you can add 3D shapes and move them in two dimensions.

So we've got the first dimension, which is width, that's labelled number one, and the second dimension, which is depth, and that's labelled here as number two.

In this lesson, you'll work with shapes in all three dimensions by resizing, lifting, and lowering objects.

So the first dimension was width.

So we had the first dimension that was width, the second dimension, which was depth, and now we are going to be looking at the third dimension, which is height.

Let's do a check here.

You can resize an object in Tinkercad in three different dimensions.

What are they?

Pause the video here and have a think.

Welcome back.

Let's go through those different dimensions again.

We've got width, depth, and height.

Well done for working on that question.

When you select an object in Tinkercad, handles will appear.

Look closely at the different types of handles.

So in this image from Tinkercad, we have got the white corner handles.

Can you see them there?

We've also got just one black cone handle, and then thirdly, there's one more type, the black square handle.

All of these handles work differently.

Let's do a check here.

True or false?

All of the handles in Tinkercad are squares.

Pause the video and think about your answer.

Welcome back.

The answer is false.

Why?

The answer is false because not all of the handles are square-shaped.

There is also a cone-shaped handle.

Well done if you got that right.

To find the size of an object, you can click on a handle.

It shows the size of your object or its distance from the workplane.

How do you think the different handles work?

What kind of movement or resizing could they be used for?

Pause the video here and have a think about that.

Let's look a bit closer at the handles in Tinkercad and what they do.

Okay, it's time for our first task today.

I want you to log into Tinkercad and start a new design.

You can do this by using the create button.

Add a cuboid to your workplane by dragging it out from the menu on the right.

Now that your Tinkercad is ready, I want you to resize using the white corner handles and explain the outcome.

Off you go and give that a try, and then come back to the video.

Welcome back.

Let's see what Sofia has to say about the white corner handle.

White corner handles can be used to resize the shape in two dimensions at the same time.

Dragging one of the corners will change the width and depth of the shape.

And I hope you enjoyed trying that out in your Tinkercad project.

The second question says to resize using the black square handles and explain the outcome.

Time to go and try out the black square handle and see what it does, and then come back to the video.

Welcome back.

Izzy tried out the black square handle.

Let's see what she says.

"These black handles can be used to resize the shape's width or depth.

" So different from the white square handle, but with the black square handle, you're either doing the width or the depth; you're not doing both at the same time.

Time for the next question: resize using the top handle and explain the outcome.

Off you go.

You're now looking for a white square handle that's on top of the shape.

Let's have a look at what Sofia says about the top handle.

"Clicking and dragging the top white handle allows you to resize the height of the shape.

" So that is our new third dimension, which is height, and when you drag with the top white handle, you can either make the shape taller or shorter.

So that's resizing the height.

Our last question for this task: I want you to resize using any of the handles while holding down the shift key on the keyboard, and I want you to explain the outcome.

What happens when you do that?

Welcome back.

So I wonder what you found out about the shift key and resizing.

Let's see what Izzy says.

"Holding down shift when resizing a shape scales it proportionally.

That means it keeps the same ratios between the different parts the same.

" So well done for exploring resizing on Tinkercad.

In the next part of the lesson, you are going to be lifting and lowering 3D objects.

In Tinkercad, you can place one shape on top of another to make a composite shape.

In this image, a box and a roof shape have been used to make a house.

The cone-shaped handle is used to lift or lower shapes relative to the workplane.

So for this part, we are using the black cone-shaped handle, not any of the white square handles or the black square handles, which is here.

You can use the cone-shaped handle to lift the shape up.

When you click and drag on the cone-shaped handle, it will lift the shape off of the blue workplane and lift it up.

You can use the cone-shaped handle to lower the shape down towards the workplane or below the workplane.

So using that same handle, dragging it down, it will lower.

It can even go through the workplane if you keep lowering it.

If you want to place the shape back onto the workplane, there's a shortcut for that: you can press the letter D on your keyboard.

Let's do a check here.

Which tool allows you to look at a shape from different perspectives?

Is it A, the ViewCube; B, zoom; or C, the cone-shaped handle?

Pause the video here and have a think about your answer.

Welcome back.

The answer is A.

So the ViewCube is one way that you can move to a different perspective and view the shape from a different side.

Well done if you got that one right.

Let's do another check here.

Which tool enables you to change the height of a shape on the workplane?

Is it A, the ViewCube; B, the zoom; or C, the cone-shaped handle?

Pause and have a think about this one.

Okay, the answer for this one was C.

The cone-shaped handle lets you change the height of a shape on the workplane.

Well done if you got that one right.

Okay, it's time for our next task.

The first step.

Okay, it's time for our first task now.

On Tinkercad, I want you to place a box shape on your workplane.

Then I want you to place a roof shape on your workplane.

Then I want you to use the cone-shaped handle to move the roof up to the height of the top of the box.

Lastly, I want you to move the roof to sit in the correct position on top of the box.

Remember to use the ViewCube and zoom tools if they're helpful to you.

Okay, you've got your steps that you're going to use on Tinkercad.

It's time to pause the video now, and when you come back, I'll show you an example.

Welcome back.

I hope you enjoyed experimenting with that cone-shaped handle to lift and lower your 3D objects.

This is an example of Alex's work.

You can see he's got a red cuboid shape, the box at the bottom, and he's got his triangular prism, which is his green roof, and he has put that on top.

For the final part of the task, here's one last question.

What strategies did you use to move and place your shapes in the correct positions?

Please explain.

You can pause the video here to share a bit about what you've learned, and then come back, and I'll show you an example.

Welcome back.

Let's see what Alex said about this part of the task.

Alex says, "I found it tricky to get the roof to the same height as the top of the box and sit it in the correct position.

I found that using the ViewCube helped me to see the shapes from different angles.

' So that's a really good tip there.

If you're struggling to line up your shapes, make sure you use the ViewCube, or you can click and drag with the right click on the mouse to change your perspective to check around all the sides of the shapes to see that they line up correctly.

Well done for all of your hard work in this task.

In the last part of the lesson, you'll be recoloring a 3D object.

To recolor a shape, first click on the shape.

You will know the shape has been selected because the handles will be showing, just like in this example here.

This is the shape inspector.

It's normally in the top right-hand corner of your working space in the programme.

The shape inspector enables you to change the properties of a shape.

Once the shape is selected, you can click on the down arrow on the shape inspector to reveal further options.

Click on the colour of the current shape.

So in my example, where it says "Solid," there's a red circle.

That's what I'm going to be clicking on over there.

Okay, it's time to do a check.

Now, I want you to fill in the missing words.

So our missing words in this check are: "select," "click," "colour," "selected," and "handles.

" So I'm going to read out the paragraph, and I will leave a pause where there should be a word: "To change the ___ of a shape, you first need to ___ on the shape to ___ it.

You'll know the shape has been ___ because the ___ will be showing.

" Okay.

Okay, you can pause the video here, fill in the gaps, and when you come back, I'll show you the answers.

Welcome back.

Let's look at the answers here.

"To change the colour of a shape, you first need to click on the shape to select it.

You will know the shape has been selected because the handles will be showing.

" Well done for working on that question.

To recolor a shape, click on a different colour from the preset colours.

So they have a wide variety of colours here for you to choose from.

You will see the selected shape change colour on the workplane.

Just like in my example, I've changed the colour from a red to an orange, and you can see that colour is also highlighted in the solid colours menu.

It's got a circle around it.

Let's do a check here.

The shape inspector is used only to change the length or width of a shape.

Pause the video here to think about your answer.

Welcome back.

The answer is false.

Why?

The answer is false because you can use the shape inspector to customise different properties of a shape, including recoloring shapes.

Well done if you got that one right.

You are now going to use the skills you have learned in this lesson to create a row of beach huts using different coloured box and roof shapes.

Here's a photo of some beach huts to give you an example.

Beach huts can be found in coastal regions.

People use them to shelter, change clothes, and store beach equipment.

Beach huts are tall and thin with a pointed roof.

You can see an example here in Tinkercad.

Okay, it's time for our final task of today.

I want you to create a row of beach huts using the handles to resize, lift, and lower shapes.

Then I want you to recolor the box and the roof shapes so that each beach hut has a different design.

It's time to pause the video here, go and work on this task, and then when you come back, I'll show you an example.

Welcome back.

I hope you enjoyed creating your beach huts.

So this is Laura's example.

You can see how she has added boxes that are lined up next to each other, and then she's added her roof shape as well, and she's used the cone-shaped handle to lift those roofs into position.

She also checked using the view tool to check the different perspectives of the shapes to make sure that everything was lined up correctly.

For the next question, I want you to use these words to explain how you created your design.

We've got: "handle," "resize," "lift," "lower," and "recolor.

" You can pause the video here to share a bit about how you created your design, and when you come back, I will share an example with you.

Welcome back.

Let's see Laura's example of how she created her design.

Laura says, "I dragged one box and one roof shape onto the workplane.

I selected the box, then dragged the height handle to resize it and make it taller.

I selected the roof shape and used the cone-shaped handle to lift it to the same height as the top of the box, then positioned it on top.

It was a little bit higher than the box when I looked at it from different perspectives, so I lowered it slightly.

I recolored the box and the roof shape.

" For the final part of the task, I want you to explore the copy, paste, and delete tools.

So you will see these three symbols in Tinkercad, and I want you to test them out and explain how these tools could help you complete this task.

Off you go to work on this final part of the task, and when you come back, I'll share a final reflection example with you.

Welcome back.

Let's see what Izzy says about the copy and paste.

The copy and paste tools worked just like they do in other pieces of software that I use.

I selected the shape, copied it, and pasted it onto the workplane.

When I was making a beach hut, this was helpful because I could resize the box and then copy and paste it so that all of the beach huts were the same height.

And finally, for the delete tool, let's see what Laura has to say.

"I was able to use the delete tool to take away any shapes that I didn't want.

At one point, I copied and pasted too many beach huts, and they wouldn't fit across the workplane, so I deleted some of them.

" Well done for all of your hard work in experimenting with these new tools in this part of the task.

We have covered a lot today.

I'm going to summarise all of that learning for this lesson: "Modifying 3D Objects.

" When a shape is selected, a number of handles appear.

The white corner handles on the base of the shape will resize the objects in two dimensions, changing its width and length.

The black handles on each side of the base of the shape will resize the shape in one dimension.

The black cone-shaped handle on top of the shape enables you to lift or lower a shape relative to the workplane.

The shape inspector is used to recolor a shape.

Thank you for all of your hard work during this lesson.

It was really good to work with you today, and I hope to see you again soon.