9-16

21 .6/14

23 . 6/14

9

1. 2. 3.

4. 5. 6. 7.

8. 9. 10.

10

1.

1

2

3

4

2.

1

2

3

4

3.

1

2

3

4

4. 1

2

3

4

11

1.

1 1 ,, 2 1 3

2.

1 ,,, 2 3

3. 1 2 3

12

A = B =

1.

2. ( )

3.

4.

5.

1.2.3. 4. 6.

7.

8.

9.

13

14

--

1-2

-

2

--

1

15

/

1

2

3

(1-4) (1-4) (1-4)

1 4 4 4

2 4 3 4

3 4 3 3

4 4 4 4

5 4 3 4

6

4 3 3

7 4 3 4

1

/

1

2

3

(1-4) (1-4) (1-4)

8 3 2 4

9 2 2 2

10 4 2 2

55 29 34

16

19/09/56

E book

20/09/56 ,

23/09/56 1

25/09/56 ()

30/09/56 2

3/10/56 CD

A5 ( A4 2

21/10/56 ( CD )

/

http://www.nectec.or.th/schoolnet/library/webcontest2003/100team/dlns058/good/good.html http://www.thai-tour.com/thai-tour/north/chiangmai/data/pic-bosang-umbrella.htm http://www.xn--

12cfra9ebbh1dya8moa2e0n.com/13%E0%B9%84%E0%B8%AD%E0%B9%80%E0%B8%94%E0%B8%B5%E0%B8%A2%E0%B9%80%E0%B8%88%E0%B9%8B%E0%B8%87%E0%B9%86%E0%B8%AA%E0%B8%B3%E0%B8%AB%E0%B8%A3%E0%B8%B1%E0%B8%9A%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B9%81%E0%B8%99%E0%B8%A7-diy.html