Feedback Loops
The two types of feedback loops are what?
Positive and Negative
People tend to organize observations and experiences into mental models. True of False
True
The light turned red and Jim did not stop. Next, there was a huge crashing sound. Jim got out of the car to inspect the damage. Police sirens were blaring in the distance. What happened, and how do you know?
Jim ran the light and caused and accident.
The effect increases its cause
Positive Feedback Loop
It is easier to learn something that matches or extends existing mental models. True of False
True
As usual, Jim left for school ten minutes later than he should have. His shoelaces were untied and his backpack was unzipped as he ran down the street. He had only gone one block when he heard his mother shout his name. He looked back and saw her waving a brown bag. What did Jim forget and how do you know?
His lunch
As sunlight enters the atmosphere some is reflected back out by ice and snow and some stays to keep the planet warm. If the ice melts, less light is reflected and more heat will stay, causing more ice to melt.
Positive Feedback
It is easy to change an established part of mental model. True of False
False
We watched the engines roar, but they remained still. They were all lined up in a straight line waiting to accelerate. Each beliveing that they could win. A man stood close to the track waving a flag and off they went. Where are they and how do you know?
A race track because the cars were lined up.
As the planet warms, evaporation rates increase, causing more clouds to form. Because of the cloud cover, less of the sun's light reaches earth, causing the planet to cool, reducing the amount of cloud cover and rainfall.
Negative Feedback
Human behavior is naturally the same with no variables or diversity. True or False
False
John overslept. When he woke up and saw the clock he jumped out of bed and scrambled around the house trying to clean himself and get dressed quickly. He grabbed his suitcase and backpack and got in the car, and sped to the airport! Five minutes after getting there John was very disappointed. Why was he disappointed and how do you know?
John missed his flight because he overslept and had a suitcase.
What is the difference between positive and negative feedback loops?
Positive feedback loops amplify changes, negative feedback loops reverse change.
It is the easiest for students to learn what they ___________ ___________ _________.
Amy was beaming as she walked down the aisle with her father by her side. All the guest were smiling at her, but she could only see the handsome man ahead. The event ended with a kiss. Where is Amy and how do you know?
At her wedding because he father walked her and it ended with a kiss.