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 to imagine what question the teacher will ask. Time is limited; so don’t waste it!
5. Once you understand the concepts yourself locate the group members who do not 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?”
Now teach them how to answer the questions you have formulated.
Now teach them how to answer the questions you have formulated.
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.
List of Concepts"
1. Considering three charges in a line with known distances, solve for the E field strength of a fourth test charge at a known location.
2. Considering three charges in a line with known distances solve for the resultant force on one of the charges.
3. Considering three charges 90 degrees apart solve for the resultant force on the charge at the 90 degree vertex. This is perpendicular vector addition.
4. Considering three charges 90 degrees apart solve for the resultant force on the charge not at the 90 degree vertex. This is non perpendicular vector addition.
5. Be able to draws E fields based on single charges or combinations of charges
6. Solve for PE given q E D or any combination
7. Solve for Change in potential given Change in Pe and charge or any combination
8. Solve for capacitance given charge and potential dif or any combination
9. Solve for capacitance of a parallel plate capacitor given area and separation distance. Know the value of Epsilon zero
10.
Know the Electric potential energy stored in a capacitor given charge and potential difference
11. Know Ohm's Law I = V/R and any variation
12. Know that Current is charge divided by time period and be able to solve for one of the variables
13. Know that power is Current multiplied by Potential difference and any variation of this formula
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