Science for All Americans
and
Benchmarks for Science Literacy
or appropriate excerpts
Blank transparencies
Chart paper
Markers
TRANSPARENCIES:
Central Benchmark: Control Mechanisms (9-12)
Exploring Project 2061 Tools-11A
Strand Map: Feedback and Control in Technological
Systems
Principles for Lessons
Principles of Effective Learning and Teaching
Inquiry and Scientific Values
Steps in Designing Instruction
HANDOUTS:
Strand Map: Feedback and Control in Technological
Systems
Lesson Plan: Control Mechanisms (9-12)
Benchmarks for Lesson Plan: Control Mechanisms
(9-12)
Steps in Designing Instruction
CELLS Through the Lens of Benchmarks: Reflections
While Using a New Tool
For the class:
Mop(s)
Thermostat (optional)
TRANSPARENCIES:
Apparatus for Controlling Water Level
How a Thermostat Works
Feedback Control System Diagram
For each group (only two groups at a time will do a test):
1000 mL graduated cylinder
2.5 m rubber tube
1 m rubber tube
2 pieces of glass or plastic tubing about 5 cm long
Sponges and paper towels for clean-up
Pinch clamp
Faucet and sink
Bucket
Two chairs or stools
Box or books to put on a chair to raise the height of the bucket if
necessary
Labels showing group members’ roles:
Input Flow Controller
Error Detector
Output Flow Regulator
Feedback Signaler
Set Point Adjuster
Recorder
For each student:
Two sheets of graph paper
HANDOUTS:
Modeling a Mechanism for Controlling Water
Level
Apparatus for Controlling Water Level
How a Thermostat Works
Feedback Control System Diagram