Hi everyone, I'm Mrs. Courts, and I'm very pleased to join you for today's lesson on testing a vehicle.

This is part of the "Wheels and axles: vehicles" unit.

Our lesson outcome for today is, I can test and evaluate my vehicle.

To do this, we have got five new keywords.

I'll say them first and then you repeat them after me.

Brilliant.

Vehicle.

Vehicle.

A vehicle is a machine with wheels used for transporting people or goods.

That means taking them from one place to another.

Testing.

Testing.

Testing is trying something to see if it works and to make changes or to improve it.

Success criteria.

Success criteria.

Brilliant.

A success criteria is a list which helps to see if the object does what it is expected to do.

Evaluate.

Evaluate.

Evaluate means checking how good something is and how to make it better.

And our finer word today is feedback.

Feedback.

Brilliant.

Feedback are comments or suggestions on how to improve a product.

Well done and great listening.

In our lesson today of testing a vehicle, we have got two parts, two learning cycles, and our first part is testing my vehicle.

To make her vehicle, Sophia has completed a design specification.

You might have completed a design specification too.

Well done.

Then she chose her axle, axle holders, and her wheels.

Did you do that? Excellent.

After that, Sophia sketched her ideas and chose her favourite one.

Did you do that? Brilliant.

And finally, Sophia made her vehicle.

Have you made your vehicle? That's great because you'll need those to test in today's lesson.

Testing is a way of checking whether something works.

It also allows the designer to find ways to change it and to improve it, and it also helps the designer to fix any problems. Alex says, "The vehicle's wheels need to turn so that they can roll forwards and backwards." Well done, Alex.

Designers test throughout the making process and this helps them to make sure that everything works.

Sophia says, "Well, if I hadn't tested my chassis before adding the body, I wouldn't have noticed the missing caps on the ends of the axles, and the wheels would've fallen off.

Luckily, I was able to fix the problem.

And therefore, as Alex said, the wheels went forwards and backwards smoothly.

Well done, Sophia and Alex.

Here are some ways that you might test your vehicle.

You might place it on a ramp and see if it rolls down by itself.

You might gently push it along a surface to check how well it moves.

You could ask a friend to try it and see how it works for them.

Alex says, "What could you do to test that your vehicle works?" We are ready for our first check for understanding.

Are you ready? Super.

So during the making process, when should you test whether your vehicle moves? Is it a, at the start; b, throughout the making process, or c, at the end? Pause the video now and have a little think.

Welcome back.

So during the making process, when should you test whether your vehicle moves? You should test it throughout.

Well done, because then you can spot any problems and sort them out as you go along.

When designers test that a vehicle works, they check it against the success criteria.

A success criteria for a vehicle should be: Does it travel in a straight line for a distance? Has it got wheels that turn moving the vehicle forwards and backwards? And does it look like a specific type of vehicle? Remember that If something works, then it is a success.

Thumbs up.

Success.

Well done.

We are ready for our next check for understanding.

Hope you're sitting comfortably.

What are success criteria? Are they a, a list which can be used to check whether something works; b, rules on how to make something work; or c, drawings of the final product? What are success criteria? Pause video now and have a little think.

Welcome back.

What are success criteria? You are right.

It's a, a list which can be used to check whether something works.

We are ready for our first task, Task A.

I'd like you to roll your vehicle down a ramp to test whether it meets these success criteria.

Does it travel in a straight line for distance? Has it wheels that turn, moving it forwards and backwards? And does it look like a specific type of vehicle? You might choose to test your vehicle in other ways too.

Pause video now and complete task A.

Welcome back.

I hope you had lots of fun testing your vehicle.

Brilliant.

Well, Sophia tested her bus against the success criteria.

Sophia says, "My bus works! It met all of the success criteria, but the wheels keep falling off between turns.

It does travel in straight line, it has wheels that turn, moving forwards and backwards, and it does look like a specific vehicle." Jacob says, "Hang on, if you tighten and squeeze the end caps, it will hold the wheels on." That's a good idea, Jacob.

Good reminder.

Well done, Sophia and Jacob.

Great testing.

We are ready for our next part of our lesson, our second learning cycle on evaluating my vehicle.

This is Sophia's vehicle.

She made a bus for her little brother who loves double-decker buses.

She used a range of materials and added extra strength to the body of the bus.

She decorated it by using red tissue paper, adding metallic card windows and painted the wheels black.

And Sophia says, "This finished bus looks like my design." Well, well done Sophia.

Great work.

Feedback is a way to get other people's views and ideas, and these are some of Sophia's friends.

This is Lucas, Izzy, and Jacob.

It also helps the designer to evaluate their work.

Sophia wanted to ask her friends, Lucas, Izzy and Jacob for feedback on her vehicle.

Who will you ask for feedback on your vehicle? Feedback is like a sandwich.

It is important that you give feedback in a positive way.

Remember to tell your friend something that works well, something that they could change to improve their design, to make it better.

And tell them what's your favourite part of their design.

Why do you like it? This feedback is peer evaluation.

When you give feedback, remember to be, Izzy says, "Kind, think about other people's feelings." That's a very good point, Izzy, be kind.

Lucas says, "Your feedback should be useful.

Think of something to help them." Great idea, Lucas, useful.

And Jacob says, "Respectful, remember, everyone does things differently.

So we need to remember to be kind, useful and respectful.

Well done.

We are ready for Task B.

I'd like you to talk to your friend and ask for feedback.

Ask them for two things they liked about your design and ask them for one thing that they might change.

And then finally, using the feedback, write a short paragraph to evaluate your vehicle.

Pause the video now and join me when you've completed Task B.

Welcome back.

Well by now, you should have spoken to your friend and ask for feedback and you should have written your short paragraph.

Brilliant.

Well, Sophia talked to her friends and they gave us some helpful feedback about her bus.

Izzy said, "It is very well decorated and I like pushing the bus along.

It was lots of fun to play with.

Your brother will love it." Lucas says, "The wheels run very well, but get caught on the chassis and this stops them moving.

Next time, you could put a small piece of straw as a spacer between the wheels and the chassis." That's a great idea, Lucas.

And Jacob said, "You remember to tighten the end caps to hold the wheels on." Sophia then wrote a short evaluation about her bus.

"My friends really liked my bus and said that it moves very smoothly in a straight line.

The body of the bus is very well joined together to the chassis and the wheels turned smoothly.

And the axle holders fell off after testing, so I squeezed the end of them, because they were made of thick straws, and this held them in place.

Lucas told me to add a spacer between the wheels and the chassis, so I did, and now the wheels turned very well." A lovely paragraph there, Sophia, to write your evaluation.

Well done.

We've reached the end of our lesson for today and I hope you've had lots of fun testing and evaluating your vehicle.

Well done.

Well, I wonder if you can give me a thumbs up if you feel you've met these learning points.

I can test and evaluate my vehicle against my design specification.

Brilliant.

The success of a project can be measured against the design specification.

Wonderful.

A good vehicle travels in a straight line.

Brilliant.

And a good vehicle travels a long distance.

Excellent.

Well, thank you for all of your hard work and well done on completing your vehicles testing and evaluating them.

See you again soon.

Bye.