Thursday, 9 April 2015

My evaluation (without peer feedback)

Design specifications:
·         The design is secure and will not come apart
·         The design makes use of lightweight materials
·         The design uses purposeful insulation around the egg
·         The design utilises a container shape/design
·         The design has a minimum of four materials
A need’s analysis for the challenge:
What is the motivation/purpose for the design?
To solve a real life technology and design problem within a famous nursery rhyme.
Who will use the product/system being produced? What is their age, characteristics relevant to the design? How will you find out what their needs are?
The system being produced will only be used by this class and the students as a problem solving challenge.
Are there any stakeholders to consider?
No.
What is the need being met through the design?
The Year One students will challenge their design and thinking skills and they will learn the process and practice computational thinking as well as design thinking.
What alternatives are already available? Why is this design better?
Egg cartons are available. The invented designs will be better because they will be built with a drop from a height, in mind.
Are there any constraints to the degree of freedom that you have in creating the design?
Specific materials list, minimum number of inclusions.
What research will be needed to develop an understanding of how the design and manufacturing process will be enabled, what processes developed by others can be used?
·         Research insulating materials
·         Look at the properties of common materials
·         What do humans use to fall safely to the ground?
·         Look at particular design that failed and evaluate why, and justify the answer. The teacher will facilitate discussion and help with the processes of attaching and binding materials together as this is always an area of difficulty in the early years.

What manufacturing constraints will influence the design – cost, equipment, safety, time?
Only materials indicated by the teacher can be used because cost is a factor. There will be a need to re-use as much materials as possible. No hot glue guns or staplers as a safety precaution. We will only get a lesson to build a design, and another lesson to evaluate and re-design after a test.

Design Technologies – Evaluation of Marketed Product
Name of the producer
Tamara Taumafai
Brief description of product being evaluated
This product is a design that was created out of a problem-based scenario in a classroom: ‘How can we protect an egg from cracking if we drop it from a height? The product is built to safely house an egg when dropped. It consists of a container, string and parachute top.

How aesthetically pleasing is the product and why?
The product is not particularly pleasing to the eye. It is made from newspaper and the parachute element sits limply beside it.
What does the product do?
The product protects an egg when it is dropped from a height.
How does it work?
The insulative properties of the foam, helps keep the egg cushioned from impact, whilst the plastic bag parachute resists the air on its way down, aiding the severity of impact.
Is it well built?
No, the design base, or container is not well built. The string and parachute are secured, but there is a risk the string could come through the holes.
Does it use lightweight materials?
Yes, the plastic bag, string and foam is light.
Does the product insulate the egg?
The foam inside the container insulates the egg.
Who would use the artefact?
This artefact would be used in the classroom, to show how design thinking can come up with ways to overcome problems.
How socially responsible is it to produce the product?
All materials in the product are recycled materials. Yet, the product is not made for longevity, so these will have to be thrown away, limiting the integrity behind the use of recyclables.
What do you particularly like about the product?
I like the product’s use of science and air resistance to aid other design concepts.
What improvements can be made?
The base of the design should probably be paper mache to give it strength, or even a small plastic container, or styrofoam cup. Perhaps helium balloons could be used to create a gentle fall to the ground.


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