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Grade 07 Science - EC: S7.A.3.1.3

Grade 07 Science - EC: S7.A.3.1.3

Continuum of Activities

Continuum of Activities

The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.

This continuum of activities offers:

  • Instructional activities designed to be integrated into planned lessons
  • Questions/activities that grow in complexity
  • Opportunities for differentiation for each student’s level of performance

Grade Levels

7th Grade

Course, Subject

Science

Activities

  1. What is system input?

  2. What is system output?

  3. What is system feedback?
  1. How are the system input and the system output related?

  2. What role does feedback play in an open-looped system?  In a closed-looped system?
  1. Name 2 systems you use regularly that do not monitor feedback.  How would your life be easier if these systems monitored feedback?  Explain your thinking.

Answer Key/Rubric

  1. System input is the information that is sent to and received by the processing system.

  2. System output is the information that the processing system sends to another system.

  3. System feedback is information that an output system gives back to the input system.  The input system is then able to make adjustments based on the feedback if necessary.
  1.  Acceptable responses may include, but are not limited to:
    • Input is the information that is given to a system.
    • Output is the information that a system sends to another system.
    • The information that is output by the system depends on the action the input told the processing system to perform.

  2. Acceptable responses may include, but are not limited to:
    • An open-looped system does not monitor its output through feedback.
    • An open-looped system performs that action assigned by the input system, but does not adjust for any errors in the output.
    • A closed-looped system monitors its output through feedback.
    • Feedback is sent back to the input system and sent through the processing system again.
    • The processing system is able to make adjustments based on the feedback.
    • Closed-looped systems are able to monitor their output in order to achieve the desired output.
  1. Acceptable responses may include, but are not limited to:
    • Clothes dryer:  The dryer has time settings and will stay for the allotted time.  If the dryer had a moisture sensor to detect when the clothing was dry, then I would save on energy costs because the dryer would turn off when all of the clothing was dry.
    • Microwave:  The microwave has time settings.  It would make my life easier if the microwave had temperature sensors.  Then I would not need to guess how long my food would need to sit in the microwave until it was hot.  I could also choose the temperature I would like my food so I wouldn’t overestimate and burn my mouth on food that is too hot.
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