Using Techlink Case Studies to Provide Evidence for Writing Reports

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• Using Techlink Case Studies to Provide Evidence
  for Writing Reports
• Gabrielle Ashton
• Team Solutions, Faculty of EducationThe
  University of Auckland

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• Where can students gain evidence for written
  reports
• Techlink
• YouTube
• DVDs
• Experts
• The wider community
• Library
• Books
• Magazines

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Synthesizing your research

• You will present a report about the development
  of the Te Rewa Rewa. Your report will focus on
  the knowledge and practices from different
  disciplines, the collaboration that occurred and
  the impact that this had on the development of
  the outcome. You will need to identify people
  from different disciplines who were involved in
  the development of the Technological outcome and
  describe their role (practice)
• Identify the knowledge and practices that were
  drawn from these disciplines in the development.
• Discuss how these people brought together
  different knowledge bases and practices and the
  impact of this collaboration on the development
  of the Te Rewa Rewa bridge

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This case study supplements the generic case
study New Product Development at Heinz Wattie's
by examining the development of a specific new
product.In mid 2002, Heinz Wattie's decided to
develop and launch a range of Asian stir fry
sauces in-a-pouch under a new sub-brand. The
company also planned to develop a range of Asian
stir fry frozen vegetables to launch at the same
time. Both ranges were aimed at two-person
households.
Developing a New Stir-fry Sauce 1.8. 1.9
http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Food-and-Biological/watties-stir-fry/
index.htm
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Case studies for 1.9

• Demonstrate understanding of the ways a
  technological outcome, people, and social and
  physical environments interact

http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Soft-materials/smart-fibres/page2.htm

http//www.teonline.com/articles/2008/12/smart-fab
rics-the-hi-tech-text.html This link has wide and
varied evidence for Smart fabrics
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Generic Technology 1.9Demonstrate
understanding of the ways a technological
outcome, people, and social and physical
environments interact

• Demonstrate understanding of the ways a
  technological outcome, people and social and
  physical environments interact involves
• describing the social and historical context
  within which a technological outcome is located
• identifying the people and social and physical
  environments that are connected to the
  technological outcome
• describing the successful and unsuccessful ways
  in which the technological outcome, the people,
  and the social and physical environments
  interact.

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http//youtu.be/mWfmoUXvHLM
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http//youtu.be/bHLtZvbhn2Q
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http//youtu.be/Bgn08OMIAG8
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http//www.teonline.com/articles/2008/12/smart-fab
rics-the-hi-tech-text.html
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Demonstrate understanding of the ways a
technological outcome, people and social and
physical environments interact involves

• Describing the social and historical context
  within which a technological outcome is located.
• Identifying the people and social and physical
  environments that are. connected to the
  technological outcome
• Describing the successful and unsuccessful ways
  in which the technological outcome, the people,
  and the social and physical environments
  interact.

Environmental Concerns The future seems to offer
boundless promise for the world of textiles. But
enthusiasm about this potential should be
tempered by the awareness that sometimes good
technology can turn bad or have unforeseen
consequencesread more in the Tech Link case
study
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In your report you need to incorporate the
following

• describe the social and historical context in
  which your selected outcome is located -
  incorporating the need and/or opportunity that
  the outcome addressed
• explain how and why people interact or have
  interacted with the outcome i.e. the key people
  who played a role in the planning, design and
  development of the outcome and those who are or
  have been impacted by the outcome
• explain how and why the outcome and the social
  and physical environment interact or have
  interacted
• identify, explain, and discuss both the
  successful and the unsuccessful ways in which
  people, the social and physical environment and
  the outcome interact or have interacted

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AS91049 1.6

• Producing a report (max 14 A4 pages) on how
  materials enable technological product(s) to
  function evidence of
• The composition and structure of materials used
  in a functioning product.
• The performance properties of materials used in a
  functioning product.
• How composition and structure impact upon the way
  materials can be manipulated.
• How the materials used and the way they have been
  manipulated allow the product to function.
• How composition and structure determine the
  performance properties of materials.
• How composition and structure determine how the
  materials can be manipulated.
• How the interaction between the composition,
  structure and manipulation of materials allow the
  product to function.

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Using a case study from Techlink for 1.6,1.8 or
1.9
http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Soft-materials/smart-fibres/page2.htm

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Technological product
MerinoPerform High Performance Clothing For The
Outdoors

• Composition of the materials
• Performance of the materials

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Composition and structure

• Arrangement of particles that make up the
  material
• Centuries of evolution, aided by selective
  breeding, have
• created a super soft, high performance Merino
  fibre with significant benefits.

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Material performance properties
MerinoPerform Advantage is a range of
bi-component fabrics with unique temperature
regulation and vapour management properties,
keeping athletes cooler and drier when exercising.
Merino Perform Advantage Fabric 40 mins
Synthetic Fabric 40 mins
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Key ideas from the curriculum

• Physical nature of materials
• How materials can be modified
• How new materials are formulated
• How materials allow a product to be fit for
  purpose for which it was designed

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Fitness for purpose
Relies on the material providing appropriate
performance properties to ensure the product is
technically feasible and acceptable (safe,
ethical, environmentally friendly, economically
viable etc) as appropriate to the product
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The outside component of Merino Advantage is made
of synthetics, possibly viscose
Cellulosic fibres like viscose are formed from
natural polymers which are then dissolved and
extruded as a continuous filament. A common
source of cellulose for these fibres is fast
growing soft woods such as eucalyptus, which have
a harvest cycle of seven years. Eucalyptus is
often grown as a monocrop and there are
significant environmental issues associated with
such plantations, such as loss of
biodiversity.Processing requires external
inputs of energy, water and other raw materials
and emissions are produced. The cellulose is
pulped in a sulphite-based process and then spun,
both with significant environmental impacts.The
production of viscose generates emissions to air
in the form of sulphur, nitrous oxides, carbon
disulphide and hydrogen sulphide. Emissions from
the process to water result in high levels of COD
and BOD. These emissions are all considered to
have major potential for creating environmental
problems if discharged untreated.
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Nylon is another synthetic that could have been
used

• How does Nylon fair environmentally and socially
  as a material?
• Nylon (or polyamide) fibres are based on a
  petrochemical feedstock. There are several forms
  of nylon, in general terms chemicals are combined
  to form a polyamide salt. The molecules of the
  two chemicals react under high pressure and heat.
  The polymer is then extracted and cooled with
  water.
• While details of the production sequence for
  nylon fibres are well documented, information or
  analysis of the environmental impacts appear to
  be extremely limited. That is with the exception
  of nitrous oxide (N2O) emissions from nylon
  production, which from a single UK site have a
  global warming impact equivalent to more than 3
  of the UK's entire carbon dioxide emissions.

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Polyester is a synthetic often blended with
natural fibres
Polyester is a category of polymers which contain
the ester functional group in their main chain.
Fabrics woven or knitted from polyester thread or
yarn are used extensively in apparel and home
furnishings, from shirts and pants to jackets and
hats, bed sheets, blankets and upholstered
furniture. Industrial polyester fibers, yarns and
ropes are used in tyre reinforcements, fabrics
for conveyor belts, safety belts, coated fabrics
and plastic reinforcements with high-energy
absorption. Polyester fiber is used as cushioning
and insulating material in pillows, comforters
and upholstery padding. While synthetic clothing
in general is perceived by many as having a less
natural feel compared to fabrics woven from
natural fibres (such as cotton and wool),
polyester fabrics can provide specific advantages
over natural fabrics, such as improved wrinkle
resistance, durability and high colour retention.
As a result, polyester fibres are sometimes spun
together with natural fibres to produce a cloth
with blended properties. Synthetic fibres also
can create materials with superior water, wind
and environmental resistance compared to
plant-derived fibres.
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Manipulation

• Manipulation often involves changing the shape,
  laminating materials and/or joining them with
  other materials. Cutting, moulding, knitting,
  weaving.

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Forming
Bringing two or more materials together to
formulate a new material this will give it a
different overall composition and structure to
that of the original materials
MerinoPerform Advantage fabrics combine the
unique high-performance benefits of Merino fibres
with synthetics in a bi-component structure. They
are knitted fabrics with the inside component
made from 19.5 micron or finer Merino, which
comprises 20 per cent of the fabric. outside
component of the fabric is made from hydrophilic
syntheticsm with other materials.
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Transformation

• Transforming changing the structure or particle
  alignment within an existing material to change
  some properties (composition stays the same)

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Scaffolding Evidence
Description of technological outcome
Performance Properties
Composition and Structure of Material-these determine the properties
How has the material been manipulated to make the product
Discuss how the interaction between the composition , structure and manipulation of materials allowed the product to function
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Literacy activity sentence starters

• A very important performance property is. This
  means..
• These properties make it ideal for.as it
• These properties make it a good material to use
  in
• Another manipulation that improves the function
  is
• This is possible because it has been
  manipulated..

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Assessment - merit

• An answer which demonstrates in-depth
  understanding of how materials enable
  technological products to function will explain
  how the composition and structure of materials
  determine material performance properties and
  manipulations that enable product function.
• (Beginning to explain not enough depth for clear
  connections required.)  
• A Merit answer will be one in which an observer
  will conclude that there has been a explanation
  of how the composition, and structure of
  materials determine performance and manipulation
  of materials to enable technological products to
  function

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Assessment - excellence

• An answer which demonstrates comprehensive
  understanding of how materials enable
  technological products to function will discuss
  how the interaction between the composition,
  structure and manipulation of materials enable
  technological products to function as intended.
• An excellence answer will be one in which an
  observer will conclude that there has been a
  discussion of how the interaction between the
  composition, structure and manipulation of
  materials enable technological products to
  function as intended.

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• http//www.techlink.org.nz/Case-studies/Technologi
  cal-practice/materials/Pou-Kapua

The Pou Kapua is a remarkable tribute to its
carvers. It is also a tribute to the problem
solving skills of engineers and especially Peters
and Cheung Ltd. Faced with a difficult and
uncompromising medium, they adopted an innovative
approach encompassing the structural support
within the sculpture and making a world first in
what is now the largest application of
glued-in-rod connections in timber. Together with
the teams who undertook the carving, steel
fabrication, directional drilling, pre-stressing
and grouting, they showed extraordinary ingenuity
in adapting their work for this unusual and
magnificent kiwi taonga.
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Another great case study for 1.8,1.9
http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Materials/Te-Rewa-Rewa-bridge/index.h
tm
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http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Soft-Materials/Secure-Couture/
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http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/ICT/Digital-Animation-Assembly/index.
htm
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http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/ICT/sidhe-interactive/index.htm
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Sidhe Interactive

• The Team
• The nerdy computer geek working alone is not a
  part of the modern games environment. Back in the
  days when video games were just starting out a
  game was quite frequently put out by one
  programmer, possibly with a bit of help from an
  artist. Nowadays this is done in a team situation
  where good communication skills are essential,
  because one small slip in an area of the code or
  animation can hold up the rest of the team and
  the game's progress. A willingness to learn and
  keep on learning is another must the games
  environment is ever changing and getting
  increasingly more complex.

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http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/materials/index.htm
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http//www.techlink.org.nz/Case-studies/Technologi
cal-practice/Food-and-Biological/Gluten-free-cooki
es/index.htm