Thinking about things as systems means looking for how every part relates to others. The output from one part of a system (which can include material, energy, or information) can become the input to other parts. Such feedback can serve to control what goes on in the system as a whole.
Constancy and Change
For Grades: 6-8
Learning Goal 2
A system may stay the same because nothing is influencing it or the influences on it are balanced.
Learning Goal 3
Many systems contain feedback mechanisms that serve to keep changes within certain limits.