A law that made it illegal to discriminate against any person with a disability. It was enacted in 1990.
Limits or restrictions that are placed on an object or idea.
In a scientific investigation, it is used to compare to the tests. The factors in the control are kept the same as in the experiment, except the independent variable does not change. Not all investigations have a control.
Goals that are used to design or judge products. The singular is criterion.
In a scientific investigation, the variable that changes depending on the other variables. Typically, you cannot predict with accuracy how the dependent variable will change. A dependent variable is sometimes called the responding variable.
Any kind of condition that limits what a person can do.
A person who uses the process of technology to help people solve problems. Engineers develop tools and other objects to extend human limits. There are many types of engineers.
A branch of science and technology that is concerned with designing and building objects to help people solve problems.
A branch of science that is concerned with designing and arranging things people use. It helps people interact with their technologies safely and efficiently.
Characteristics of humans that may affect a design or product. The characteristic could be a mental or physical ability, or it could be a preference that people have.
In a scientific investigation, the variable that you change to see the results. An independent variable is sometimes called the manipulated variable.
A pill or liquid used in a controlled experiment that does not contain the drug being tested. A placebo serves as a control.
The process that helps people solve problems. Technologies extend human limits to help people solve problems.
A factor, or quantity, in a scientific investigation that can change. A variable can be manipulated, or it can remain the same, during a scientific investigation.
Next 
Engage Linking
Question Explore
Linking
Question Explain
Linking
Question Elaborate Linking
Question Evaluate
Key idea: Many examples of technology exist.
Activity: Students use a set of cards to divide items into whether they do or do not represent technology.Key idea: Doing technology is solving problems.
Activity: Students design a solution to a problem.Key idea: Engineers use a process to design solutions to problems.
Activity: Students read about an engineer’s work and organize ideas about the process of technology.Key idea: Safety is an important concern when people do technology.
Activity: Students decide on the safety equipment needed for a job in a toy factory and consider safety concerns for consumers.Key idea: Doing technology involves both a specific process and safety concerns.
Activity: Students use one of the items from the Engage activity to explain the process of technology.