6 Z 4, pp. 572∼583
W _
Ë V Ä; c 6 X ¢ Big Concept M m ] K ¡ ø p ©; c" e Ò Þô p §8 ý 4 G Èt ? 0
T
® £g ` @
r
< É ª É r > í1 p x < Æ §, r < É ª 429-874
ý
¡) o - >
â
§¹ ¢ ¤ @ / < Æ § õ < Æ §¹ ¢ ¤ õ , î ß ª 430-739
(2012¸ 3 Z 4 8{ 9 ~ Ã Î6 £ §, 2012¸ 3 Z 4 27{ 9 Ã º& ñ : r ~ Ã Î6 £ §, 2012¸ 6 Z 4 1{ 9 > F S X & ñ )
: r 7 Hë H _ 3 l q& h É r Big Concept(BC)\ ¦ ¦_ H Ð 6 x H Big Concept l ì ø Í < Æ_ þ v(Big Concept Based Learning, BCBL)` ¦ : x # % ò ½ ¨ $ 3 \ @ /ô Ç í1 p x < ÆÒ q t[ þ t _ > h¥ Æ Ò q tI \ ¦ ½ ¨ H כ s . Ä º o
H ‘ F G _ Z O g Ë :’` ¦ % ò ½ ¨ $ 3 \ @ /ô Ç BC Ð & ñ ô Ç Ê ê, 4 r ì r | ¾ Ó_ î ß ? / ) a < Æ_ þ v t 6¼ # õ 4 r ì r
|
¾ Ó_ l Å Ò ¸& h à н ¨t 4¼ # Ü ¼ Ð ½ ¨$ í ) a BCBL « Ñ\ ¦ > hµ 1 Ï % i . s \ ¦ â l r < É ª S í1 p x < Æ § 4 < Æ
¸
36" î ` ¦ @ / © Ü ¼ Ð & h 6 x # | 9 & h ì r$ 3 ô Ç õ H 6 £ § õ ° ú : ' Í P :, BCBL É r F G _ Z O g Ë :_ > h¥ Æ t
0 A\ ¦ ¾ Ó © r ( . s H F G _ Z O g Ë : ' aº l : r ë H ] j_ ¨ î ç H& h à º [ O ë H ¸ (39& h )\ q # BCBL s ' H d \ t 5 Å q& h Ü ¼ Ð © 5 p x(57& h → 91& h → 95& h )ô Ç z ´ РÒ' · ú à º e . Ñ ü t P :, g Ë
>ì ø Í ' aº à н ¨ ë H ] j ì r$ 3 õ , < ÆÒ q t[ þ t _ > h¥ Æ Ò q tI ‘ # Q’ $ í ì r \ © { © ô Ç o e % 3 . BCBL
\
H ë H ] j\ í < Ê ) a ‘ =’ H ´ ú _ _ p \ ¦ ‘Ó ü t o & h " é ¶ o (why)’ Ð K $ 3 H â Ä º 42 %s % 3 Ü ¼ < Æ _
þ
v Ê ê\ H 64 % Ð 7 £ x % i ¦, ‘q Ó ü t o & h s Ä »(for)’ Ð K $ 3 H â Ä º H 56 % \ " f 31 % Ð y è % i
. ! Ó P :, BC_ g Ë : Y V o ' aº à н ¨ ë H ] j\ @ /ô Ç 1 l x[ þ t _ ì ø Í6 £ x` ¦ Ð , F G _ Z O g Ë :s > h
¥ Æ
Ò q tI _ & h è\ e H â Ä º, ½ Ó_ & h [ O ` ¦ [ j0 > & h F G& h Ü ¼ Ð ë H ] jK ` ¦ r ¸ ¦ o\ ¦ Ø Ô> s K
# D h Ðî r > h¥ Æ ` ¦ µ 1 Ï| % i . ì ø Í \ ‘û Z H $ 3 \ · ¡ H .’ H > h¥ Æ s & h è\ e H â Ä º\ H s
>
h¥ Æ s õ < Æ& h à н ¨ Ö ¸1 l x` ¦ ~ ½ ÓK Ù ¼ Ð BC\ ¦ : x # > h¥ Æ t 0 A\ ¦ ¾ Ó ¸& ñ ½ + É 9 כ ¹ e . ‘¿ º F G É r
½ Ó © © Ü ¼ Ð > r F ô Ç .’ H © F G _ Z O g Ë :s > h¥ Æ Ò q tI \ # ) a â Ä º\ + þ A$ í ) a ¸> h¥ Æ [ þ t É r s Z O g Ë :s D
h Ðî r BC Ð Æ Ò÷ &# Q < Ê` ¦ r ô Ç . : r& h Ü ¼ Ð, BCBL É r < ÆÒ q t[ þ t _ à н ¨ 0 p x§ 4 ¾ Ó © \ Ä »6 x < Ês ó
ø Í" î ÷ &% 3 ¦, Æ ÒÊ ê ½ ¨ õ ] j Ð" f É r Å Ò] j[ þ t \ @ /ô Ç BCBL_ > hµ 1 Ï É r u e ` ¦ כ s .
Ù þ
d # Q: > h¥ Æ Ò q tI , H > h¥ Æ l ì ø Í < Æ_ þ v, % ò ½ ¨ $ 3 , o
Children’s Conceptual Ecologies
in the Big-concept-based Learning about Permanent Magnets
Ju Hyun Yi
Eungye Elementary School, Siheung 429-874
Seok-In Hong ∗
Gyeongin National University of Education, Anyang 430-739 (Received 8 March 2012 : revised 27 March 2012 : accepted 1 June 2012)
The purpose of this paper is to investigate elementary-school students’ conceptual ecologies about permanent magnets through big-concept-based learning (BCBL), which utilizes the big concept
-572-
(BC) as the basis of thinking. We chose ‘the law of magnetic poles’ as a BC about permanent magnets and then developed a BCBL that consisted of six sets of guided learning materials for four class hours and four sets of self-directed investigation materials for another four class hours.
A qualitative analysis was made of the products from the BCBL lessons that had been given to 36 fourth-grade students in Siheung ‘S’ elementary school. The results are summarized as follows:
First, the BCBL improved the status of ‘the law of magnetic poles.’ This can be seen from the fact that compared with the pretest score (39) before the BCBL (given a full score of 100), the mean scores for basic problems concerning the law of magnetic poles continuously increased (57
→ 91 → 95) as the BCBL went on. Second, the analysis of students’ responses to the magnetic- compass-related problem showed that there was a considerable change in the ‘language’ component of students’ conceptual ecologies; the proportion of students who interpreted the meaning of ‘why’ in the problems as a ‘physical principle (why)’ (as a ‘non-physical reason (for)’) increased (decreased) from 42 % (56 %) before the BCBL class to 64 % (31 %) after the class. Third, students’ responses to the magnetization-related problem showing an anomaly in the BC indicated that for some students,
‘the law of magnetic poles’ was located in the niche of conceptual ecology. In that case, students actively tried to solve the problem with creative hypotheses, and they discovered new concepts through correct understanding of the magnetization. On the other hand, since the concept ‘Iron sticks to a magnet’ in the niche hinders scientific inquiry activities, its conceptual status must be lowered with the aid of BC. The lack of the basic concept, ‘the two magnetic poles always exist in pairs’, can lead to misconceptions, which implies it should be added as a new BC. In conclusion, BCBL turned out to be useful in improving students’ scientific capabilities, and developing BCBL for other topics will be valuable as a future study.
PACS numbers: 01.40.Fk, 01.40.gb, 75.50.Ww, 75.60.Ej
Keywords: Conceptual ecology, Big-concept-based learning, Permanent magnet, Magnetization
I. " e  ] Ø
1. ì Å 8 ý ý m Ç~ ¿V R Ë õ m Í Ò ×X ì Ä
õ
< Æ É r 7 H o \ ¦ l ì ø ÍÜ ¼ Ð H ^ > & h < Æë H s .
" f õ < Æ_ ô Ç % ò % i ` ¦ < Æ_ þ v ½ + É M :\ Õ ª % ò % i _ Å Òכ ¹ Ð o
`
¦ ¸ ú à н ¨ H כ s Ä »6 x . Õ ª X < ( : r ½ ¨ { © r _
) ] j 7 §¹ ¢ ¤ õ & ñ í1 p x < Æ § õ < Æ §õ " f H s ü < ° ú É r
~
½ Ód s m , ª ô Ç > h¥ Æ [ þ t` ¦ Ñ þ o& h © ¾ ¡ § r 1 p w
\ P ¦ e . ] j 7 §¹ ¢ ¤ õ & ñ 3 < Ƹ 1 < Æl 2. $ 3 Z t s
é ß " é ¶ _ â Ä º\ % ò ½ ¨ $ 3 ' aº > h¥ Æ [ þ t $ 3 \ · ¡ H
כ
õ · ¡ t · ú § H כ , F G, F G _ Z O g Ë :, o, l § 4 1
p
x` ¦ í H & h Ü ¼ Ð z ´+ « >` ¦ : x K < Æ_ þ v H ~ ½ Ód ` ¦ G × þ
%
i [1]. s ~ ½ Ód É r ª ô Ç > h¥ Æ ` ¦ _ þ v1 p q l \ H Á ºo
\ O
Ü ¼ õ < Æ& h ë H ] jK 0 p x§ 4 ` ¦ ¾ Ó © r v l \ H Â Ò7 á ¤ ô Ç
§Ã º | Ä Ìs .
< Æ_ þ v < Æ_ þ v ô Ç ª ô Ç > h¥ Æ É r > h _ 1 l q: £ ¤ ô Ç t & h
¨ 8
â õ © ñ 6 x # > hZ > & h > h¥ Æ Ò q tI \ ¦ ë ß H . > h¥ Æ
∗