Lesson video

Hi, everyone.

I'm Mrs. Courts.

I'm very pleased to join you for today's lesson on accessible design prototype.

This is part of the Products and people: inspirational design unit.

In our lesson today, our lesson outcome is, I can create a prototype accessible product.

We have three new keywords in today's lesson, so let's have a little look.

Prototype.

Prototype.

A prototype is a simple, low-cost model made to check size, shape, and function.

Technique.

Technique.

A technique is a particular way of doing something.

And our final word is adapt.

Adapt.

Adapt means to make changes.

In our lesson today of accessible design prototype, we have two learning cycles, two parts.

And our first part is modeling with card.

Before a design is made into a finished product, it can be tested using a prototype.

A prototype is usually a smaller, model version of a product, often made from a less expensive material.

A prototype allows the designer to see how the product will be made and test specific features or elements of the design.

And here's a prototype of a chair.

We're ready for our first check for understanding.

So what is a prototype?

A, a design drawing with annotations, B, a list of tools and equipment, C, a finished product ready to use, or D, a model made to test a design?

Pause the video now and have a little think.

Welcome back.

So what is a prototype?

That's right.

It is a model made to test a design.

Well done, everyone.

Prototypes are often made from materials such as card, wood, plastic, or polystyrene.

3D printing has also become an effective way to make prototypes.

Card is a good material for prototypes because it is inexpensive, it is readily available, easy to cut and shape, easy to adapt, that means change, and recyclable.

Cardboard comes in different thicknesses for different purposes.

The thicker the card, the more strength it has.

Here is some thin cards and thick card.

Corrugated cards has wavy, fluted layers in it to give it extra strength.

Cards can be shaped using different techniques, including bending, creasing, or folding card to change its shape, scoring where we're pressing a line into card to make it easier to fold, and curling, shaping card into a curve or spiral.

These techniques can then be used to make different shapes for a prototype.

Resources for shaping cards include a safety ruler, pencil, scissors, and pieces of scrap card of different thicknesses.

Well, let's have a look at some of the different techniques.

First, the bending technique.

Take a strip of scrap card and place the ruler in the center.

Bend one half up to the ruler.

Run your finger along the bend, pressing the fold, and find the center of each half and repeat the process so you have three bends.

The scoring technique.

Take a strip of thick card and use the ruler to draw a line where you want to fold the card.

Carefully run the back of the scissor blade along the pencil line, pressing firmly.

And finally, bend the card back away from the line.

Finally, the curling technique.

Cut a rectangular strip of thick card and place the ruler across one of the short sides.

Take hold of the edge of the card, and press down on the ruler as you carefully pull the card through in an upwards direction.

Another way of completing the curling technique is card can also be shaped around a curved object to create a curved shape.

We're ready for our next check for understanding.

So what is the scoring technique?

Is it A, folding card, B, pressing a line in card, C, cutting through card, or D, curling card?

Pause the video now and have a little think.

Welcome back.

So what is a scoring technique?

It is pressing a line in card.

Well done.

We are ready for our first task now, task A of modeling with cards.

Bending and shaping card is key to making a prototype.

Practice these techniques on different types of scrap cards.

First, using the bending technique, try making two bends and folding them to form a triangular shape, making three bends and folding them to make a cuboid shape.

Secondly, using the scoring technique, try scoring two lines and folding to form a triangular shape and scoring three lines of folding to make a cuboid shape.

And finally, using the curling technique, try shaping a piece of thin hard into a cylinder shape.

Pause the video now and join me when you've completed task A.

Welcome back.

Hope you had lots of fun bending and shaping cards.

Brilliant.

You should have made shapes similar to these.

The scoring technique often works best on thicker cards, and the curling technique is easier with thinner cards.

We're ready for next part of our lesson now on making prototypes.

Now we have practiced the techniques needed to shape a model card, we can use these techniques to build prototypes.

Sofia says, "We've designed some new accessible chairs for the classroom.

We can model them to see how they would work.

" Well done, Sofia.

So Sofia's class have been working on a project to design new classroom chairs.

Designs had to be accessible to suit a range of users, functional to work as a classroom seating, and they had to consider how to make the chairs adjustable, comfortable, and supportive.

Sofia said, "We were also inspired by the designer Yinka Ilori to make the chairs colorful and fun.

We're ready for our next check for understanding now.

So what makes a project accessible?

A, it can't be used by anyone, B, can only be used by certain people, C, can be used by as many people as possible, and D, it is made for people who use wheelchairs.

Pause the video now and have a little think.

Brilliant.

Welcome back.

So what makes a product accessible?

That's right.

It can be used by as many people as possible.

So, steps to make a prototype chair like Sofia's include, start by cutting out two strips of card for the legs, measure and mark where they will bend, use the bending technique to bend both legs, and repeat on the second strip of card.

Then, use the leg piece to mark the width of the seat on the other piece of cards.

Use the bending technique to fold the side in, and repeat on the opposite side.

Then, cut two pieces of card as wide as the side of the seat with tabs on each side.

Use the bending technique to fold the tabs in, and use the pencil to bend the top of the armrest into a curve and repeat to make two of these.

Tape tabs around the sides of the seat piece.

And then cut a piece of card for the backrest.

Draw a line down the center.

Pierce a hole in the line using a pencil and push scissors through to cut along the line.

So cut the shape of the headrest and make a tab on the back.

Push through the slit on the backrest.

Score and fold the edge of the backrest which will attach to the seat.

And then tape the backrest into place.

Tape the leg pieces to the underside of the seat piece.

Tape strips of cards across the legs to keep them in position.

And add extra card to any parts that need extra support.

Card prototypes are useful to see how a product functions and can be left undecorated.

Sofia's prototype helped her to see some potential problems with her design.

Sofia said, "The back is too wide and the chair is not stackable unless I remove the arm and leg rests.

" Sofia adapted her prototype to fix the problem.

We're now ready for our next check for understanding.

So which card shaping technique creates a neat, sharp fold?

Is it A, curling, B, bending, C, scoring, or D, cutting?

Pause the video now and have a little think.

Welcome back.

So which card shaping technique creates a neat, sharp fold is scoring.

Well done.

We're now ready for our next task, task B of making prototypes.

I'd like you to use the card shaping techniques to make a prototype accessible classroom chair.

Then I'd like you to assess your prototype.

Is it accessible to a range of users, functional, does it work as a classroom seating?

And then finally, adapt your prototype to fix the problems that you identified.

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

Welcome back.

I hope you have lots of fun Completing task B, making prototypes, creating an accessible classroom chair.

Did you manage to use different card shaping techniques?

Did you check your prototype was accessible to a range of users and functional?

And did you have to adapt anything?

What did you adapt?

Well, prototypes can help us to see problems with the design and they can also be adjusted to help us come up with solutions.

Here is Sofia's sketch.

Here is the first prototype, and here is the adapted prototype.

I wonder how you got on.

Have you shared your work with others?

Brilliant.

We've reached the end of our lesson for today on accessible design prototype, and I hope you've had lots of fun.

Let's have a look through our key learning points.

So a prototype is a simple, low-cost model made to check size, shape, and function.

Prototypes can be made from card, and card can be shaped using different techniques, and prototypes can be adapted.

Well, well done everyone for all of your hard work, and I'll see you soon.

Bye.