Grade 07 Science - EC: S7.A.3.1.4
Grade 07 Science - EC: S7.A.3.1.4
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
Related Academic Standards / Eligible Content
Activities
- What is an open-looped system? List 2 examples.
- What is a closed-looped system? List 2 examples.
- Explain how a closed-looped system is affected by feedback.
- Your friend Carlos wants to construct a new heating and cooling system for his home. Would you recommend that he construct an open-looped systems or a closed-looped system? Why? Use at least three facts to defend your recommendation.
Answer Key/Rubric
- Acceptable responses may include, but are not limited to:
- An open-looped system does not measure feedback to determine if its goal has been accomplished.
- Toaster
- Washing machine
- Dryer with timer
- Irrigation sprinkler system
- Light switch
- An open-looped system does not measure feedback to determine if its goal has been accomplished.
- Acceptable responses may include, but are not limited to:
- A closed-looped system is a type of system that uses feedback to control itself.
- Thermostat
- Cruise control on a car
- Hot water heater
- A closed-looped system is a type of system that uses feedback to control itself.
- Acceptable responses may include, but are not limited to:
- Feedback is information that is measured and used to reach the goal of the closed-looped system.
- A closed-looped system is able to monitor its output through feedback.
- The system can compare the actual output with the anticipated output and adjust accordingly.
- Acceptable responses may include, but are not limited to:
- Open-looped systems are simple.
- Open-looped systems are stable.
- Open-looped systems are easy to construct.
- Open-looped systems can be inaccurate.
- Open-looped systems can be unreliable.
- Closed-looped systems are reliable.
- Closed-looped systems are not affected by outside noise sources.
- Closed-looped systems are difficult to construct.
- Closed-looped systems can be unstable.
