Contributed by:
Powerpoint containing materials and renewable, non-renewable resources.
1.
IDENTIFICATION OF
MATERIAL CONSTRAINTS
Design and Technology
2.
RECAP: SCENARIO ONE
A student has created a neutral aesthetic toy for his target
audience of 4-6 year olds. When the toy was given to the age
group, only 1/20 children played with the toy.
Why is this?
3.
WHAT ARE MATERIALS?
Materials are a matter from which objects can be created.
As young designers, you will need to consider the context and
impact which these materials will have on your product.
4.
SURPRISE QUESTION
As the world is progressing, we are using an increased number of
environmentally friendly materials. What is the word for this?
5.
WHAT TO CONSIDER
When picking a material to create your product from, you need to
take into account their working properties and characteristics.
What are working properties and characteristics?
https://www.youtube.com/watch?v=340MmuY_osY
6.
WOOD:
Wood is a hard material which is often found in the barks of trees.
Working properties Charecteristics
Can be compressed Rigid
Shock absorbent Tough
Can be stretched Has dark and light colours
Shrinkage Density
7.
GLASS
Glass is a fragile material which is made from sand
Working properties Charecteristics
Heat resistance Transparent
Shatterproof glass Fragile
Malleable in liquid state Brittle
Great for light transmission Weather resistance
8.
PLASTIC
Plastic is a material found in our daily lives. They are made from a
certain polymer.
Working properties Charecteristics
Can be malleable when heated Multitude of colours
Easily moulded Lightweight
Ductile Strong
Corrosion resistant Water resistant
9.
FABRIC
Fabric is a material which is made from many plastics and
polymers binding together. This also helps make the materials
stretchy.
Working properties Charecteristics
Stretchy Different textures
Durable Variable thickness
High Resistance Multitude of colours
Shape can be manipulated Textures
10.
METALS
Metals are materials which come in a variety of differednt forms
and are able to conduct electricity.
Working properties Charecteristics
Malleable Good conductors
Durable Can be made thin or thick
Tensile strength Come in a few colours
Compressive Cant be painted
11.
SMART MATERIALS
New emerging technology has generated smart materials. A smart
material is when the physical properties of a material can be
altered.
e.g. mood rings, colour changing mugs, glow in the dark sticks
12.
RENEWABLE AND NON RENEWABLE
Renewable resources are those which have an endless supply as
they can be regenerated
Some examples can be bio fuel, wood, cotton and many more
From this definition can you tell me what non renewable materials
are?
13.
WHAT TO CONSIDER WHEN PICKING
A MATERIAL
When picking a material, it is important to consider the function.
E.g.
If your product is a toy which may be used indoors and outdoors,
will leaving in the rain cause it to rust, break down?
If you are making a piece of furniture, will the material used be able
to withstand people sitting on it or utilising it?
14.
Finish off the double page spread about the sustainabvle materials
from last lesson.
Make x4 single page spreads about each material which we learnt
about today, include the working properties, charecteristics, if they
are renewable or non renewable and their sustainability., how you
will use this material in your design. Include pictures and add
colour.
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