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culture of learning appeared to implement the teaching intervention based on all principles of the intervention. Their students had been found to progress their understanding about photosynthesis. The students also developed their active way of participating in learning activities. On the other hand, the teachers who strongly emphasized teacher-centered rarely appeared to achieve the principles of the intervention. Their students could not develop the understanding about photosynthesis and still learned in the classroom passively. Next is conclusions and discussion about all interesting ideas of this research. 216
CHAPTER VI SUMMARY, DISCUSSION AND RECOMMENDATION This chapter leads to a summary of how this research has been conducted to promote teaching and learning about photosynthesis in Thailand. Also, it offers a discussion about teaching for better understanding about photosynthesis. The teaching aims at understanding of photosynthesis, understanding photosynthesis in relation to the environment and understanding of the nature of science. Teaching in the Thai context is also presented. Then, the chapter summarizes the impact of the intervention on teachers and students and ends up with the recommendations. Summary According to the National Education Act in 1999 (ONEC, 2000a) and the National Science Curriculum (IPST, 2002), science education has been reformed to improve Thai students’ learning. They are now required to understand biology and its relation with the environment, as well as the nature of science. Also, the literature indicates that students retain misconceptions about photosynthesis (IPST, 1989; Sukpimontree, 1988; Jantranon; 1999; Kijkuakul and Yutakom, 2004), after attending classes in introductory and advanced photosynthesis at school. It appears that teaching in the Thai classrooms has not overcome these problems yet (Kijkuakul and Yutakom, 2004). As a Thai biology teacher, the researcher would like to develop a teaching intervention to improve photosynthesis learning in Thailand. This interpretive research has developed the photosynthesis teaching intervention as a model to enhance the students’ understanding of photosynthesis and its relation with the environment and the students’ understanding of the nature of science. The impact of the intervention on the teachers and the students has been examined in the three case study schools. The subjects were three biology teachers and their 118 Grade 11 students. They were from different public high schools located in the Bangkok suburban area. They were purposely selected to participate in
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THESIS CASE STUDIES OF TEACHING AND
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TABLE OF CONTENTS Page LIST OF TABL
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TABLE OF CONTENTS (CONTINUED) iii P
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TABLE OF CONTENTS (CONTINUED) v Pag
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LIST OF TABLES Table Page 2.1 Struc
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LIST OF TABLES (CONTINUED) Table Pa
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CHAPTER I INTRODUCTION This chapter
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led to improvement in the promotion
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water worked as food transported wi
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suggested peer collaboration for hi
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chloroplasts and pigments, the ligh
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would like to develop a new teachin
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concepts, such as absorption of lig
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conceptions, the scope of biology e
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3, and 8. In Grades 11-12, the scie
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Table 2.3 Basic Science Content Sta
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Table 2.3 (Cont’d) Contents Conte
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light energy and chlorophyll 2 H O
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2. Photosynthesis Itself Plants, al
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of chlorophyll. The students believ
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Up to this point, those previous st
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partly because of the biology educa
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(Matthews, 1997: 6). Philosophicall
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understanding capability of environ
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4. Social Constructivism The Russia
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5. Constructivist-Based Teaching ab
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peers, while the control group work
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generation to the next” (Cobb and
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2.1) Thai Living Styles Thailand is
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focuses prepare them to take the Na
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culture. First, Thai existing views
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Third, the nature of science is the
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democratic view, that the understan
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4. Summary: Integrating the Nature
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elationship between one concept and
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Brown (2003) used a combination of
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Focusing on thinking and encouragin
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Which aspect of the nature of scien
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teaching photosynthesis needs impro
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− encouraging students to partici
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The attempt to understand and inter
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Figure 3.1 Research Design of the T
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was considered to differentiate the
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2.1) Teacher Preparation for Implem
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3. Evaluating Impacts of Photosynth
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Figure 3.2 Survey Developmental Pro
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1.2) Advanced Photosynthesis Survey
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1. accessibility - is enabling the
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implementation of the teaching inte
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Table 3.4 Data Collection Program S
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students. The learning culture in t
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1. Surveys: Content Analysis Conten
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They were confirmed by the teachers
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CHAPTER IV THE PHOTOSYNTHESIS TEACH
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structures and functions of chlorop
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Therefore, this study focused on us
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from constructivism to socio0cultur
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Sub-stand 1: Living Things and Livi
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stroma. 5.3) Lists of Concept Propo
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c) Light independent (dark) phase
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Figure 4.1 Photosynthesis Concept M
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Lesson 1 ‘Plant food’, aimed to
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Lesson 5 ‘Light independent (dark
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Table 4.1 Photosynthesis Lesson Pla
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Table 4.1 Cont’d Lesson 3. Struct
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Table 4.1 Cont’d Lesson 5. Light
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Table 4.1 Cont’d Lesson 6. Studen
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After the researcher finished devel
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per a week, namely two 60-min perio
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always asked what she really did no
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schooling studying, she studied Phy
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B = blackboard C = instrument cupbo
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Forty nine percentages had partial
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for photosynthesis. Only seven perc
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Table 5.3 Correcting the Introducto
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Mrs. Engka: Right (confirmed). You
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structures might be a metaphor of u
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Table 5.4 Advanced Photosynthesis C
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In her planning for the nature of s
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participating in role play discussi
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5.4) Principle IV: Enabling Student
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inside and outside teaching period.
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Activities 5.6) Principle VI: Encou
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6. Summary of the Border School In
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2. Background Information about Mr.
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Table 5.7 Mr. Vyn’s Students Sele
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Mr. Vyn had his own style of teachi
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5. Mr. Vyn’s Implementation of th
Page 179 and 180: Mr. Vyn: …No. 4…mineral is plan
Page 181 and 182: The misconception that CO2, mineral
Page 183 and 184: Although the students incompletely
Page 185 and 186: model of chloroplast structure base
Page 187 and 188: undle-sheath cells. Both cells cont
Page 189 and 190: Table 5.9 Advanced Photosynthesis C
Page 191 and 192: However, there was no discussion ab
Page 193 and 194: change in term of application of ol
Page 195 and 196: 5.4) Principle IV: Enabling Student
Page 197 and 198: discussion. “The teacher always d
Page 199 and 200: photosynthesis e.g. dark phase. Als
Page 201 and 202: 2. Background Information about Mrs
Page 203 and 204: Table 5.12 Mrs. Amp’s Students Se
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Page 207 and 208: misconceptions about plant food, pa
Page 209 and 210: The misconceptions about plant and
Page 211 and 212: Table 5.13 Correcting the Introduct
Page 213 and 214: percentages misunderstood that the
Page 215 and 216: Table 5.14 Advanced Photosynthesis
Page 217 and 218: One conception about science demand
Page 219 and 220: Table 5.15 The Nature of Science of
Page 221 and 222: Not only relating photosynthesis kn
Page 223 and 224: the book and summarized the concept
Page 225 and 226: Cross Case Studies: Implementation
Page 227 and 228: In case of the teachers e.g. Mrs. A
Page 229: students’ own views about plants
Page 233 and 234: 5. The students’ understanding of
Page 235 and 236: learning participation rarely appea
Page 237 and 238: the students to understand the rela
Page 239 and 240: the science project for environment
Page 241 and 242: ecause old knowledge was reinterpre
Page 243 and 244: Table 6.2 Learning Activities Sugge
Page 245 and 246: understandings about the light inde
Page 247 and 248: Therefore, this research suggested
Page 249 and 250: Amir, R. and P. Tamir. 1995. Propos
Page 251 and 252: Bell, B. 1998. Teacher development
Page 253 and 254: Campbell, N. and J. Reece. 2002. Bi
Page 255 and 256: Duit, R. and D. Treagust. 2003. Lea
Page 257 and 258: Govindjee, J., T. Beatty, and H. Ge
Page 259 and 260: Institute for the Promotion of Teac
Page 261 and 262: Lin, H. and C. Chen. 2002. Promotin
Page 263 and 264: Merriam, S. 1988. Case Study Resear
Page 265 and 266: Patton, M. 1990. Qualitative Evalua
Page 267 and 268: Smith, M. and L. Scharmann. 1999. D
Page 269 and 270: Von Glasersfeld, E. 1995. Radical C
Page 271 and 272: APPENDIX A: INTRODUCTORY PHOTOSYNTH
Page 273 and 274: 1. Tick any of these items which ca
Page 275 and 276: 6.5) Plants need carbohydrate for t
Page 277 and 278: APPENDIX B: ADVANCED PHOTOSYNTHESIS
Page 279 and 280: 5. Tick any item (s) which you thin
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12. Here is a statement about plant
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