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On the other hand, the teachers must continuously encourage and facilitate the student’s group discussion or classroom discussion and then flow the entire discussion. The students were expected to become a citizen of the classroom society. They would then feel free to argue with the teacher for their better learning. Also, teaching should relate Thai views about plants (Chapter 2). Before the students would be received formal teaching, the students’ views about plants must be investigated and developed. The students were expected to regenerate own ideas and then link the ideas to the new concepts in the classroom. Also, they would be promoted to use the new concepts to conserve their environment based on the natural resources and environmental policy of Thailand (Chapter 2). The educational values of some Thai students indicated that formal education system is being changed by the private tutorial system (Buranakarn, 2003). Some students learn biology for particular taking of the National Entrance Examination without really understanding about photosynthesis. So, teaching must build up the positive attitude towards learning in the classroom by developing assessment. This would concern student achievement in both conception and participation in classroom activities. Biology is not only useful for the examination but also for the living in classroom society. Students’ own evaluation of learning would be additionally integrated in the teaching. 100 According to Thai school society (Chapter 2), the teaching was loaded by the teacher’s extra work such as head of science department or head of the Scout Association. The teaching also was substituted by the school events or activities such as sport day. As well as, the teaching was required to change emphasis from teachercentre of learning to student-centre of learning (ONEC, 1999). Thus, this teaching unit needed to be developed by the teachers’ cooperation. The teachers were expected to implement the unit suitably, for the students in the school and the classroom. Due to emergence of this socio-cultural perspective from the constructivist perspective (discussed in Chapter II), transmission of teaching approach
from constructivism to socio0culturalism was needed in this study. The generative learning model of teaching (Osborne and Freyberg, 1985) would thus used to promote the classroom learning. There were the three main steps: 1. Focus phase involves probing student existing ideas and prior knowledge about introductory photosynthesis based on Principle I; 2. Challenge phase involves encouraging students to learn new ideas. These are the current scientific ideas about photosynthesis (Principle II) and the nature of science (Principle III); 3. Application phase involves supporting students to use the knowledge taught to explore and develop their ideas about photosynthesis. This involved enabling students to apply/relate photosynthesis knowledge to conserve environment as Principle IV. To support the teaching based on the previous five principles, the students would be expected to dynamically participate in learning activities. The students might be required to radically change their learning to new ways in contrast with their old tradition. 3.6) Encouraging Students to Participate in Learning Activities 101 This principle aimed to encourage students to thinking what to do, inside and outside teaching period, other than passively listening to teacher’s lecture. Hopefully, the students would form a meaningful learning style to participate in learning activities. According to the National Education Act of 1999, the students should have opportunities to: 1. have a direct relationship with nature and the environment from which they draw authentic experience;
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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
Page 63 and 64: culture. First, Thai existing views
Page 65 and 66: Third, the nature of science is the
Page 67 and 68: democratic view, that the understan
Page 69 and 70: 4. Summary: Integrating the Nature
Page 71 and 72: elationship between one concept and
Page 73 and 74: Brown (2003) used a combination of
Page 75 and 76: Focusing on thinking and encouragin
Page 77 and 78: Which aspect of the nature of scien
Page 79 and 80: teaching photosynthesis needs impro
Page 81 and 82: − encouraging students to partici
Page 83 and 84: The attempt to understand and inter
Page 85 and 86: Figure 3.1 Research Design of the T
Page 87 and 88: was considered to differentiate the
Page 89 and 90: 2.1) Teacher Preparation for Implem
Page 91 and 92: 3. Evaluating Impacts of Photosynth
Page 93 and 94: Figure 3.2 Survey Developmental Pro
Page 95 and 96: 1.2) Advanced Photosynthesis Survey
Page 97 and 98: 1. accessibility - is enabling the
Page 99 and 100: implementation of the teaching inte
Page 101 and 102: Table 3.4 Data Collection Program S
Page 103 and 104: students. The learning culture in t
Page 105 and 106: 1. Surveys: Content Analysis Conten
Page 107 and 108: They were confirmed by the teachers
Page 109 and 110: CHAPTER IV THE PHOTOSYNTHESIS TEACH
Page 111 and 112: structures and functions of chlorop
Page 113: Therefore, this study focused on us
Page 117 and 118: Sub-stand 1: Living Things and Livi
Page 119 and 120: stroma. 5.3) Lists of Concept Propo
Page 121 and 122: c) Light independent (dark) phase
Page 123 and 124: Figure 4.1 Photosynthesis Concept M
Page 125 and 126: Lesson 1 ‘Plant food’, aimed to
Page 127 and 128: Lesson 5 ‘Light independent (dark
Page 129 and 130: Table 4.1 Photosynthesis Lesson Pla
Page 131 and 132: Table 4.1 Cont’d Lesson 3. Struct
Page 133 and 134: Table 4.1 Cont’d Lesson 5. Light
Page 135 and 136: Table 4.1 Cont’d Lesson 6. Studen
Page 137 and 138: After the researcher finished devel
Page 139 and 140: per a week, namely two 60-min perio
Page 141 and 142: always asked what she really did no
Page 143 and 144: schooling studying, she studied Phy
Page 145 and 146: B = blackboard C = instrument cupbo
Page 147 and 148: Forty nine percentages had partial
Page 149 and 150: for photosynthesis. Only seven perc
Page 151 and 152: Table 5.3 Correcting the Introducto
Page 153 and 154: Mrs. Engka: Right (confirmed). You
Page 155 and 156: structures might be a metaphor of u
Page 157 and 158: Table 5.4 Advanced Photosynthesis C
Page 159 and 160: In her planning for the nature of s
Page 161 and 162: participating in role play discussi
Page 163 and 164: 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
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Mr. Vyn: …No. 4…mineral is plan
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The misconception that CO2, mineral
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Although the students incompletely
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model of chloroplast structure base
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undle-sheath cells. Both cells cont
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Table 5.9 Advanced Photosynthesis C
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However, there was no discussion ab
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change in term of application of ol
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5.4) Principle IV: Enabling Student
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discussion. “The teacher always d
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photosynthesis e.g. dark phase. Als
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2. Background Information about Mrs
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Table 5.12 Mrs. Amp’s Students Se
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laboratory activities and concept m
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misconceptions about plant food, pa
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The misconceptions about plant and
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Table 5.13 Correcting the Introduct
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percentages misunderstood that the
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Table 5.14 Advanced Photosynthesis
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One conception about science demand
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Table 5.15 The Nature of Science of
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Not only relating photosynthesis kn
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the book and summarized the concept
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Cross Case Studies: Implementation
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In case of the teachers e.g. Mrs. A
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students’ own views about plants
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CHAPTER VI SUMMARY, DISCUSSION AND
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5. The students’ understanding of
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learning participation rarely appea
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the students to understand the rela
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the science project for environment
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ecause old knowledge was reinterpre
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Table 6.2 Learning Activities Sugge
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understandings about the light inde
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Therefore, this research suggested
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Amir, R. and P. Tamir. 1995. Propos
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Bell, B. 1998. Teacher development
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Campbell, N. and J. Reece. 2002. Bi
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Duit, R. and D. Treagust. 2003. Lea
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Govindjee, J., T. Beatty, and H. Ge
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Institute for the Promotion of Teac
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Lin, H. and C. Chen. 2002. Promotin
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Merriam, S. 1988. Case Study Resear
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Patton, M. 1990. Qualitative Evalua
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Smith, M. and L. Scharmann. 1999. D
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Von Glasersfeld, E. 1995. Radical C
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APPENDIX A: INTRODUCTORY PHOTOSYNTH
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1. Tick any of these items which ca
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6.5) Plants need carbohydrate for t
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APPENDIX B: ADVANCED PHOTOSYNTHESIS
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5. Tick any item (s) which you thin
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12. Here is a statement about plant
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