Numbered Heads Instructions
1. Form into the designated groups
2. Take out one full sheet of paper per group and list the name of the group at the top. Then list the names of the group members and place numbers next to each name (1, 2, 3…..If four members then write 4 also). It doesn’t matter who gets what number.
3. Hand the paper to the instructor. It will be used for assessment and graded.
4. Begin reviewing/ learning the listed concepts. Make up sample questions related to the concept. Try and figure out what question the teacher will ask. Time is limited; so don’t waste it!
5. Once you understand the concepts make sure each group members also understand by assessing them. Do not ask yes or no assessment questions.
Good Assessment. “Sam, could you show me how to do number three on the list?”
Poor Assessment. “Do you guys all know it?”
6. When the instructor calls a number randomly (ex. = 3) the three will go to a designated area alone and respond to a similar question. Make sure they have something to write with and a calculator. After they leave begin studying the next set of concepts for the next round.
7. After a short amount of time the person will then return to the group and their answer will be graded by the teacher and given to the entire group as a communal score.
8. The returning group member may be called again so they should receive extra instruction to help get caught up.
9. The scores are added at the end to determine winners. The top three groups receive extra points on the test.
Fluids Test Concepts
1. What defines a fluid?
2. difference between liquid and gas
3. calculate buoyant force given density and volume
4. True things about floating objects
5. True things about submerged objects
6. units of pressure (4)
7. Pascal's Principle
8. P = F/A all relationships
9. calculate pressure (Pa) given force and dimensions of area (cm squared or m squared)
10. calculate force given pressure and area
11. gauge pressure v absolute pressure
12. pressure v (depth, density) relationship
13. calculate gauge pressure given absolute pressure and atmospheric
14. calculate absolute pressure given gauge and atmospheric
15. A1 V1 = A2V2 calculate one variable given other 3
16 calculate new speed of fluid given change in pipe diameter as a ratio
17. in pipes where diameter changes know what happens to pressure
18. hydraulic lift calculate maximum mass to be raised given two areas and an input mass
19. calculate absolute pressure at a depth in meters below water given atmospheric pressure and density of the water
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