Work and Machines 1

Date: 3/13/14 and 3/17/14

Class: Physical Science

Periods: W1,2,4 and B2

Outcomes: Describe how machines make Work easier and the purpose of each of the 6 simple machines.

Standards: 9-12.P.2.3

Student Needs: 

Assessment Plan: Groups present their machine type

Lesson Outline: Collect answers to last class’s question > Velocity problem and KE problem > What do machines do? > Why do screwdrivers have handles? > Put students into 6 groups > Give each student a machine type > Tell them to read about their machine > When everyone is done reading, tell them they are going to teach their classmates about their machine > They will need what is their machine, a simple diagram of it, parts of their machine, equations involved with it, what is the machine used for and non-book examples > Start notes > HW: Ch. 5 Review pg. 152 (1-17)

Review: Make up a velocity practice problem and a kinetic energy practice problem

Anticipatory Set/Opening: Ask students about 5.2, and what purpose does the handle of a screwdriver serve?

Key Points: 6 types of simple machines: lever, pulley, wheel and axle, inclined plane, wedge and screw

Teaching Input: Asking questions, putting students into groups, giving directions

Modeling: Show screwdriver, different levers

Checking for Understanding: Have students repeat directions

Guided Practice/Monitoring: making presentations

Closure: Go back to why do screwdrivers have handles?

Independent Practice: Ch. 5 Review pg. 152 (1-17)