Technology & Engineering

Wednesday 8/27/2014

Bell Ringer 8/27/2014An engineering company is testing a new weather-

forecasting program. Which procedure would best verify

that the program is making accurate predictions?

F comparing the predictions of the program to the

actual weather

G comparing the predictions of the program to other

predictions

H using the program to verify events not related to

weather

J using the program to verify past weather-related

events

Bell RingerAn engineering company is testing a new weather-

forecasting program. Which procedure would best verify

that the program is making accurate predictions?

F comparing the predictions of the program to the

actual weather

G comparing the predictions of the program to other

predictions

H using the program to verify events not related to

weather

J using the program to verify past weather-related

events

VOCABULARY

CONTROLCONTROL

VARABLE VARABLE

DATADATA

HYPOTHESISHYPOTHESIS

ANALYZEANALYZE

Control

Definition: a person, group, event that is used as a constant and unchanging standard of comparison in scientific experimentation.

Visual:

Example: In your own words:

Variable

Definition: any factor that can be controlled, changed, or measured in an experiment.

Visual:

Example: In your own words:

Data

Definition: information, specifically, facts and numbers used to analyze something or make decisions.

Visual:

Example: In your own words:

Hypothesis

Definition: an idea or explanation that you then test through study and experimentation.

Visual:

Example: In your own words:

Analyze

Definition: to examine carefully and in detail so as to identify causes, key factors, and possible results.

Visual:

Example: In your own words:

OBJECTIVES

ExplainExplain how science, technology, and engineering how science, technology, and engineering are related.are related.

Identify Identify ways that technology responds to social ways that technology responds to social needs.needs.

ExplainExplain the engineering design process for the engineering design process for developing new technologies.developing new technologies.

DescribeDescribe technology in terms of its intended technology in terms of its intended benefits and unintended consequences.benefits and unintended consequences.

State Performance Indicators

SPI 0807.T/E.2 Evaluate a protocol to determine if the engineering design process was successfully applied.SPI 0807.T/E.3 Distinguish between the intended benefits and the unintended consequences of a new technology.SPI 0807.T/E.4 Differentiate between adaptive and assistive engineered products (e.g., food, biofuels, medicines, integrated pest management).

What Is Technology• Technology refers to the products and processes that are designed to serve our needs.• Technology also refers to the tools and methods for creating these products.• Technology applies to any product, process, or knowledge that is developed to meet a need.

Telephones have changed over the years, becoming smaller and more mobile.

Engineering is the process of creating technology.

Scientists, inventors, business owners, artists, and even students

have also engineered new technologies.

Anyone can follow the engineering design process to solve a problem

or address a need.

How Does Science Relate to Technology?

Engineering uses scientific knowledge to develop technologies.

Engineers use science and mathematics to create new

technologies that serve human needs. There are many different

types of engineers who develop a variety of very different products.

A real life transformer

Flat materials and origami patterns, a real life transformer (self-folding robot) has the potential to get into tight spaces for search and rescue missions, like in rooms with collapsed buildings.

What is the Engineering Design Process?

• The engineering design process has similarities to the scientific process.

• Like the scientific process, some steps may require repeating or modifying to fit different needs.

Step 1 Ask: Identifying and Researching a Need

• Engineers define and describe the need or problem they are trying to solve.

• Research provides engineers with information for problem solving.

Step 2 Imagine: Developing Possible Solutions

• Brainstorming is the process in which a group of people share ideas quickly to promote additional ideas.

• Sometimes a possible solution to the problem comes from these ideas or it may take more time and thought.

Engineers are cutting the cords on electricity. These two new technologies will free us from the tangle of cords and plugs. Energy harvesting taps into energy that is already moving through our environment. It grabs radio waves and microwaves and turns in to electricity!

Wireless electricity & Energy harvesting

Step 3 Plan: Making a prototype

• A prototype is a test model of the product.

• Prototypes allow engineers to see if their design works the way they expect it to.

Google’s prototype self-driving

Step 4 Create: Testing and Evaluating

• Prototypes are tested and evaluated. • Engineers complete a cost-benefit analysis to make sure that the cost of designing and producing the new product is worth its benefit.

Step 5 Improve: Modifying and Retesting the Solution

• If a prototype was not successful or did not work well, engineers would either modify their prototype or try a new solution. • It is important that the engineers consider what was learned from the first prototype before they begin the design process again.

Five steps in the engineering design process

Communication Engineers often need to share their successes, failures, and reasoning with others.

Engineers may explain and promote the technology to customers, or they may communicate with the public through news releases, advertisements, or journals.

Technology and Society Technology provides solutions for many types of social, and economic needs.

Intended Benefit An intended benefit is the positive purpose for which a technology is designed to be used.

Cell phones allow people to stay connected with others and to call for help....

Unintended Consequences are uses or results that engineers do not purposely include in the design of products. An unintended consequence can be beneficial.

These towers have been disguised as trees to minimize their detracting from landscape

Bioengineering

The application of engineering to living things, such as humans and plants, is called bioengineering.

Bioengineered technologies can be classified as either assistive or adaptive.•Assistive technologies are developed to help organisms without changing them.

Boys gets prosthetic hand made by 3-D printer

• Adaptive bioengineered products change the living organism.

Prosthetic heart is an artificial organ that is permanently Implanted inside the human body

Assistive or Adaptive?The Amazing Spiderman!

Exit TicketWhich of the following is an unintended consequence of the cell phone?

A cell phone rings can interrupt others

B people can take phones in cars to communicate in emergencies

C business people can keep in better touch with their customers

D long-distance calling can be more affordable