Hello there, my name's Mrs. Taylor and I'm really pleased you can be here to join me for this lesson today.

Our lesson today is: Mark out and prepare materials: papers and boards, and this is part of the Iterative Design: Nature unit.

The outcome: "I can mark out materials accurately to manufacture my design." There are three keywords: marking out: the process of measuring and drawing on a material before manufacture; accurate, which is correct and precise; and measuring: determining the size of an object using a tool.

In this lesson we have two learning cycles: Prepare for marking out and Marking out a design.

Let's begin with Prepare for marking out.

Marking out is measuring and drawing on a material before manufacture.

This is a critical task and should be carefully and accurately completed.

It helps to: prevent material waste, ensure a good fit for assembly, save time, cost, and reduce errors.

Here we have a quick check.

When manufacturing, marking out accurately.

is A: prevents material waste.

B: makes the design better, or C: ensures a good fit for assembly? Pause the video and have a go.

Wonderful.

Let's check.

That's right.

It's both A and C.

Marking out accurately prevents material waste and ensures a good fit for assembly.

Well done.

A variety of tools are required when working with different types of materials, including when marking out materials.

Different materials require specific marking tools.

Using the wrong tool, such as a pencil on metal, can result in unclear or inaccurate marks.

Recalling measuring skills using millimetres will support successful marking out and the preparation of materials.

Remember that millimetres are far more accurate than centimetres or anything else.

Equipment needed for marking out on paper and boards: a pencil, a metal ruler, a set square, a protractor, and a compass.

Additional equipment that will support successful marking out on papers and boards could include: a French curve, a cutting mat, masking tape, a safety rule, try square, and a tape measure.

Here we have a check.

Can you name the pieces of equipment? Pause the video.

Wonderful.

Let's check.

A set square and a cutting mat.

Well done.

Equipment to avoid: Plastic rulers.

The measurements don't start at the ruler's edge, leading to inaccuracies when measuring.

And thick nibbed pens produce a thick line that does not support accurate measuring and cutting.

This also applies to pencils which are not sharp.

We can see here the plastic ruler.

The measurements do not start at the edge.

And the thick nipped pen offers a wide line, which would be inaccurate when we came to cut.

When marking out materials, you should try to mark out shapes from the edges or as close to the edges as possible.

For example, this piece of card has the rectangle pushed to the edge of the piece of card, which would be a good use of materials and a sensible place to mark it out.

This is an example which would not be a sensible place to mark it out, in the centre of a piece of card, as much more would be wasted.

This avoids waste and can make cutting much less difficult.

Drawing straight lines on paper and boards.

Use a set square or a try square to check the material edges are straight.

This helps marking out straight lines and accurate measuring.

Use a pencil, ruler or tape measure to construct any dimensions, and always check your measuring.

Remember, measure twice and cut once.

Use a set square to start any straight lines to ensure lines are perpendicular to one another or the edges of the material.

Use masking tape on the outside of your pencil lines to make lines stand out clearly.

Add waste lines to remember what section of material you need and to avoid mistakes.

Let's have a check.

What could you use to make marking out lines stand out more clearly? Is it A: a board marker, B: a felt tip, C: masking tape, or D: a paintbrush? Pause the video.

Let's check.

That's right, it's C, masking tape.

Well done.

When drawing curves on paper and boards, you can use: a French curve or a compass.

You can also use: a pencil and some string, or a protractor for accurate angles.

The success criteria to support marking out on paper and boards could be: rest the material on a cutting mat; check for straight edges, surface marks and scratches; mark out from the edges and not in the middle; use a pencil and metal or safety rule for accuracy; use a set square to ensure straight and perpendicular lines; use the correct equipment for curves and try not to create freehand; use resources like an orthographic projection to support with dimensions; add masking tape and waste lines for clarity when cutting.

Here we have Task A.

Part one: Peer assess the example of marking out below using the success criteria.

Use a cutting mat; check straight edges, surface marks and scratches; mark out from the edge, use a pencil, metal or safety rule and a set square; use the correct equipment for curves; use an orthographic projection; add masking tape and waste lines.

Pause the video and have a go.

Fabulous.

Let's check.

Your answers could include: the cutting mat has not been used underneath; the shape has been marked out in the middle, which is wasting material; the lines don't look straight.

I don't think a set square has been used; a thick pen and a plastic ruler have been used instead of a pencil and a metal ruler; the surface quality of the material is poor, I can see damage.

Well done.

We now move on to our second learning cycle: Marking out a design.

Below is an orthographic projection from one component of a design for an accessible herb planter.

Marking out this component on corrugated cardboard can be supported by: an orthographic projection, a paper and boards success criteria.

Here we have a check.

Select the important document that can support marking out.

Is it A: a manufacturing time plan, B: a specification, or C: an orthographic projection? Pause the video.

Well done.

Let's check.

That's right.

It's C, an orthographic projection.

Well done.

Here is the marked out component on five millimetre thick corrugated cardboard.

The edge, the cutting mat, masking tape, a steel rule, a straight edge, pencil, waste lines, and a set square.

The success criteria being used to support the marking out: use a cutting mat; check straight edges, surface marks, and scratches; mark out from the edge; use a pencil, metal or safety rule and a set square; use the correct equipment for curves, there are no curves in this particular part, so not needed here; use an orthographic projection; and add masking tape and waste lines.

Let's have a check.

Identify what is missing from the marking out and success criteria for papers and boards.

Pause the video.

Fantastic.

Let's check.

That's right, It was mark out from the edge, the third one down and the sixth one down is to use an orthographic projection.

Well done.

Task B.

Using a design that you have created, mark out on paper and card one component.

Use the success criteria below for support.

If you do not have a previous design of your own, you could use a component from the orthographic projection that we shared earlier instead.

Pause the video.

Wonderful.

Let's have a look at some of the answers you may have come up with.

Your answer may look something similar to this.

Here we have a summary of our learning today.

Marking out is the process of measuring and drawing on a material before manufacture.

It is an important task and should be carefully and accurately completed.

It helps prevent material waste, ensures a good fit for assembly, and saves time, cost and errors.

Different materials require specific marking tools.

Using the wrong tool can result in unclear or inaccurate marks.

To support the marking out process, use the correct equipment, an orthographic projection, for reference with dimensions, and a marking out success criteria for your material.

Well done and thank you for joining me here today.