| Place |
 |
■Regular classroom □Computer room □Special
classroom □Gymnasium
□Athletic Field □Outdoors □Others〔 〕 |
|
|
|
| Type
of Lesson |
|
■Class □Group □Pair/Individual □Follow-up □Others〔 〕 |
|
|
|
| Phase |
|
■Introduction □Development ■Conclusion □Others〔 〕 |
|
|
|
| Main
user of IT |
|
■Teacher □Student □Others〔 〕 |
|
|
|
| Objectives |
|
■To introduce the topic □To motivate
students □As illustrative material used by the teacher □As illustrative
material used by the student □To master through repetition □To present
a model ■To recollect past experiences □To compare □To examine what
has been done/studied □To provide second-hand experience □Others〔 〕 |
|
|
|
| Equipment |
|
■Computer ■Projector ■Screen □Electronic
Whiteboard □Visual Presenter □Digital Camera ■Video Player □Internet □Digital
Contents □CD-ROM □Speakers □Others〔 Downloaded sites 〕 |
|
| A practical example on how to find numbers that change
proportionately by showing a video of the surrounding school area. |
Proportions and Inverse Proportions
Contents: based on curriculum guidelines
7th Grade Contents C Numerical and Quantitative
Relations
| (1) |
To develop the ability to recognize, express
and examine the concepts of proportions and inverse proportions by investigating
the relationship and the changes between two numbers present in a specific
situation. |
To find numerical quantities in the surrounding environment that proportionately
change.
| (1) |
Present a problem, showing a video of a tank
filling up with water.
|
|
|
[Abstract]
The teacher shows students a video of a water tank filling up with
water as an example of a proportionate relationship between two numbers—in
this case, time and quantity. |
|
| |
|
| (2) |
Draw diagrams, charts and graphs to show the relationship
between the time that has elapsed since the tank began to fill up and
the resulting water depth. |
| (3) |
Present the number of minutes it took to fill the tank
to a depth of 24 cm. |
| (4) |
Watch a video of the surrounding area to find two numbers
that change proportionately.
|
|
|
[Abstract]
The students look for two numbers in the video that change proportionately. |
|
| When looking for numbers that change proportionately,
it is helpful to focus on things that move or quantities that change over
time. |
|
