Enable
students to
|
1. |
Experience
writing mini-essay (describe and explain) |
|
2. |
Understand
the meaning of drift and drift velocity |
Apparatuses
Included in package
|
1. |
Box |
x 1 |
|
2. |
Ball
bearings (5 mm) |
x 6 |
|
3. |
Worksheet
file (read only) |
x 1 |
|
4. |
Presentation
file (read only) |
x 1 |
Not included in package
|
5. |
DC
power supply (6 V) |
x 1 |
|
6. |
Stopwatch
(optional) |
x 1 |
|
7. |
Metre
rule (optional) |
x 1 |
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In a
double-lesson, teachers could
|
1. |
Begin
with demonstrating the ball bearing’s motion on horizontal and inclined plane |
|
2. |
Invite
students to describe and explain the ball bearing’s motions |
|
3. |
Support
students by introducing “structure planning” and “physical quantity
selection” |
|
4. |
Transit
from mechanical model to electron drift and drift velocity of electrical
conduction |
|
5. |
Elaborate
on drift velocity by measuring the time taken and displacement of ball
bearing on inclined plane (optional) |
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