Date: 2/22/13 and 2/25/13
Class: Physical Science
Periods: B2,3 and W1,3,4
Outcomes: Students will be able to use formulas for Work, Power, Mechanical Advantage and Ideal Mechanical Advantage for various machines.
Standards:
Student Needs:
Assessment Plan: Worksheet of practice problems
Lesson Outline: Kinetic Energy and GPE problems > Finish Notes > Close Lab by calculating IMA > Practice problems using Work, Power, MA and IMA equations > Assign Practice Problems for homework
Review: Kinetic Energy (35kg mass moves 134m in 12s) and GPE (8kg mass 95m height) problems
Anticipatory Set/Opening: Work, Power and MA isn’t all that useful in our day-to-day lives. A lot of it is common sense. But to an engineer or inventor, these concepts are crucial for designing new devices, planning construction sites, etc.
Key Points:
Teaching Input: Discussing lecture slides, giving practice problems, leading lab discussion
Modeling: Practice Problems on board, modeling input forces on the board
Checking for Understanding: Have students discuss their results, repeat directions
Guided Practice/Monitoring: Practice Problems
Closure: Ask students how much force would have been required to lift the mass using 8 pulleys
Independent Practice: Work and Power Practice Problems
Reflection:
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