Standard
5: Technology
Students will apply technological
knowledge and skills to design, construct, use, and evaluate products and systems to
satisfy human and environmental needs.
Key
Idea 1
Engineering Design:
Engineering design is an iterative
process involving modeling and optimization used to develop technological solutions to
problems within given constraints.
Performance Indicators:
(Benchmarks)
Elementary Level
Students:
- describe objects, imaginary or real, that
might be modeled or made differently and suggest ways in which the objects can be changed,
fixed, or improved.
- investigate prior solutions and ideas from
books, magazines, family, friends, neighbors, and community members.
- generate ideas for possible solutions,
individually and through group activity; apply age-appropriate mathematics and science
skills; evaluate the ideas and determine the best solution; and explain reasons for the
choices.
- plan and build, under supervision, a model
of the solution using familiar materials, processes, and hand tools.
- discuss how best to test the solution;
perform the test under teacher supervision; record and portray results through numerical
and graphic means; discuss orally why things worked or didnt work; and summarize
results in writing, suggesting ways to make the solution better.
Middle Level Students:
Students engage in the following steps in
a design process:
- identify needs and opportunities for
technical solutions from an investigation of situations of general or social interest.
- locate and utilize a range of printed,
electronic, and human information resources to obtain ideas.
- consider constraints and generate several
ideas for alternative solutions, using group and individual ideation techniques (group
discussion, brainstorming, forced connections, role play);
- defer judgment until a number of ideas
have been generated; evaluate (critique) ideas; and explain why the chosen solution is
optimal.
- develop plans, including drawings with
measurements and details of construction, and construct a model of the solution,
exhibiting a degree of craftsmanship.
- in a group setting, test their solution
against design specifications, present and evaluate results, describe how the solution
might have been modified for different or better results, and discuss tradeoffs that might
have to be made.
Commencement Level
Students:
Students engage in the following steps in
a design process:
- initiate and carry out a thorough
investigation of an unfamiliar situation and identify needs and opportunities for
technological invention or innovation.
- identify, locate, and use a wide range of
information resources including subject experts, library references, magazines,
videotapes, films, electronic data bases and on-line services, and discuss and document
through notes and sketches how findings relate to the problem.
- generate creative solution ideas, break
ideas into the significant functional elements, and explore possible refinements; predict
possible outcomes using mathematical and functional modeling techniques; choose the
optimal solution to the problem, clearly documenting ideas against design criteria and
constraints; and explain how human values, economics, ergonomics, and environmental
considerations have influenced the solution.
- develop work schedules and plans which
include optimal use and cost of materials, processes, time, and expertise; construct a
model of the solution, incorporating developmental modifications while working to a high
degree of quality (craftsmanship).
- in a group setting, devise a test of the
solution relative to the design criteria and perform the test; record, portray, and
logically evaluate performance test results through quantitative, graphic, and verbal
means; and use a variety of creative verbal and graphic techniques effectively and
persuasively to present conclusions, predict impacts and new problems, and suggest and
pursue modifications.
Key
Idea 2
Tools, Resources, and Technological Process:
Technological tools, materials, and other
resources should be selected on the basis of safety, cost, availability, appropriateness,
and environmental impact; technological processes change energy, information, and material
resources into more useful forms.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- explore, use, and process a variety of
materials and energy sources to design and construct things.
- understand the importance of safety, cost,
ease of use, and availability in selecting tools and resources for a specific purpose.
- develop basic skill in the use of hand
tools.
- use simple manufacturing processes (e.g.,
assembly, multiple stages of production, quality control) to produce a product.
- use appropriate graphic and electronic
tools and techniques to process information.
Middle Level Students:
- choose and use resources for a particular
purpose based upon an analysis and understanding of their properties, costs, availability,
and environmental impact.
- use a variety of hand tools and machines
to change materials into new forms through forming, separating, and combining processes,
and processes which cause internal change to occur.
- combine manufacturing processes with other
technological processes to produce, market, and distribute a product.
- process energy into other forms and
information into more meaningful information.
Commencement Level
Students:
- test, use, and describe the attributes of
a range of material (including synthetic and composite materials), information, and energy
resources.
- select appropriate tools, instruments, and
equipment and use them correctly to process materials, energy, and information.
- explain tradeoffs made in selecting
alternative resources in terms of safety, cost, properties, availability, ease of
processing, and disposability.
- describe and model methods (including
computer-based methods) to control system processes and monitor system outputs.
Key
Idea 3
Computer Technology:
Computers, as tools for design, modeling,
information processing, communication, and system control, have greatly increased human
productivity and knowledge.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- identify and describe the function of the
major components of a computer system.
- use the computer as a tool for generating
and drawing ideas.
- control computerized devices and systems
through programming.
- model and simulate the design of a complex
environment by giving direct commands.
Middle Level Students:
- assemble a computer system including
keyboard, central processing unit and disc drives, mouse, modem, printer, and monitor.
- use a computer system to connect to and
access needed information from various Internet sites.
- use computer hardware and software to draw
and dimension prototypical designs.
- use a computer as a modeling tool.
- use a computer system to monitor and
control external events and/or systems.
Commencement Level
Students:
- understand basic computer architecture and
describe the function of computer subsystems and peripheral devices.
- select a computer system that meets
personal needs.
- attach a modem to a computer system and
telephone line, set up and use communications software, connect to various on-line
networks, including the Internet, and access needed information using e-mail, telnet,
gopher, ftp, and web searches.
- use computer-aided drawing and design
(CADD) software to model realistic solutions to design problems.
- develop an understanding of computer
programming and attain some facility in writing computer programs.
Key
Idea 4
Technological Systems:
Technological systems are designed to
achieve specific results and produce outputs, such as products, structures, services,
energy, or other systems.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- identify familiar examples of
technological systems that are used to satisfy human needs and wants, and select them on
the basis of safety, cost, and function.
- assemble and operate simple technological
systems, including those with interconnecting mechanisms to achieve different kinds of
movement.
- understand that larger systems are made up
of smaller component subsystems.
Middle Level Students:
- select appropriate technological systems
on the basis of safety, function, cost, ease of operation, and quality of post purchase
support.
- assemble, operate, and explain the
operation of simple open- and closed-loop electrical, electronic, mechanical, and
pneumatic systems.
- describe how subsystems and system
elements (inputs, processes, outputs) interact within systems.
- describe how system control requires
sensing information, processing it, and making changes.
Commencement Level
Students:
- explain why making tradeoffs among
characteristics, such as safety, function, cost, ease of operation, quality of post
purchase support, and environmental impact, is necessary when selecting systems for
specific purposes.
- model, explain, and analyze the
performance of a feedback control system.
- explain how complex technological systems
involve the confluence of numerous other systems.
Key
Idea 5
History and Evolution of Technology:
Technology has been the driving force in
the evolution of society from an agricultural to an industrial to an information base.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- identify technological developments that
have significantly accelerated human progress.
Middle Level Students:
- describe how the evolution of technology
led to the shift in society from an agricultural base to an industrial base to an
information base.
- understand the contributions of people of
different genders, races, and ethnic groups to technological development.
- describe how new technologies have evolved
as a result of combining existing technologies (e.g., photography combined optics and
chemistry; the airplane combined kite and glider technology with a lightweight gasoline
engine).
Commencement Level
Students:
- explain how technological inventions and
innovations have caused global growth and interdependence, stimulated economic
competitiveness, created new jobs, and made other jobs obsolete
Key
Idea 6
Impacts of Technology:
Technology can have positive and negative
impacts on individuals, society, and the environment and humans have the capability and
responsibility to constrain or promote technological development.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- describe how technology can have positive
and negative effects on the environment and on the way people live and work.
Middle Level Students:
- describe how outputs of a technological
system can be desired, undesired, expected, or unexpected.
- describe through examples how modern
technology reduces manufacturing and construction costs and produces more uniform
products.
Commencement Level
Students:
- explain that although technological
effects are complex and difficult to predict accurately, humans can control the
development and implementation of technology.
- explain how computers and automation have
changed the nature of work.
- explain how national security is dependent
upon both military and nonmilitary applications of technology.
Key
Idea 7
Management of Technology:
Project management is essential to
ensuring that technological endeavors are profitable and that products and systems are of
high quality and built safely, on schedule, and within budget.
Performance Indicators
(Benchmarks)
Elementary Level
Students:
- participate in small group projects and in
structured group tasks requiring planning, financing, production, quality control, and
follow-up.
- speculate on and model possible
technological solutions that can improve the safety and quality of the school or community
environment.
Middle Level Students:
- manage time and financial resources in a
technological project.
- provide examples of products that are well
(and poorly) designed and made, describe their positive and negative attributes, and
suggest measures that can be implemented to monitor quality during production.
- assume leadership responsibilities within
a structured group activity.
Commencement Level
Students:
- develop and use computer-based scheduling
and project tracking tools, such as flow charts and graphs.
- explain how statistical process control
helps to assure high quality output.
- discuss the role technology has played in
the operation of successful U.S. businesses and under what circumstances they are
competitive with other countries.
- explain how technological inventions and
innovations stimulate economic competitiveness and how, in order for an innovation to lead
to commercial success, it must be translated into products and services with marketplace
demand.
- describe new management techniques (e.g.,
computer-aided engineering, computer-integrated manufacturing, total quality management,
just-in-time manufacturing), incorporate some of these in a technological endeavor, and
explain how they have reduced the length of design-to- manufacture cycles, resulted in
more flexible factories, and improved quality and customer satisfaction.
- help to manage a group engaged in
planning, designing, implementation, and evaluation of a project to gain understanding of
the management dynamics.
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