“

“

“

“

“

“

“

“

21

1

2

1

“

”

2

3 3

4

PLC

-

“ ” “

- 3R x 7C

-

-

-

-

-

-

-

-

(working

memory) (longterm memory)

-

-PLC

“ ” PLC

- PLC

-

-

-

-

-

- PBL

(Project-Based Learning)