<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pi-Hun Yang</style></author><author><style face="normal" font="default" size="100%">Chung-Yuan Hsu</style></author><author><style face="normal" font="default" size="100%">Gwo-Jen Hwang</style></author><author><style face="normal" font="default" size="100%">Gwo-Haur Hwang</style></author><author><style face="normal" font="default" size="100%">Min-Ai Yang</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">THE IMPACT OF THE PREDICTION-OBSERVATION-EXPLANATION MODEL ON PRESCHOOLERS’ UNDERSTANDING OF GEAR CONCEPTS THROUGH BLOCK PLAY</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">building blocks</style></keyword><keyword><style  face="normal" font="default" size="100%">Early childhood education</style></keyword><keyword><style  face="normal" font="default" size="100%">gear concepts</style></keyword><keyword><style  face="normal" font="default" size="100%">science education</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">October/2024</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2023/987-1729494292.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">23</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The complexity of gear concepts, often misunderstood by young children, highlights the need for educational frameworks beyond simple play. To examine the effects of using the prediction, observation, and explanation (POE) model in building block activities, a true experimental design was implemented. A total of 49 preschoolers were randomly assigned to either an experimental group, which engaged with building blocks embedded with the POE model, or a control group, which followed a building instruction guide. Data were gathered through pretests, posttests, and two-week delayed tests administered to all participants. The theoretical framework for this study was based on the POE model, emphasizing the importance of prediction, observation, and explanation in the learning process. The results revealed that the POE model had positive impacts on fostering young children’s acquisition of gear concepts. Specifically, gear speed and gear direction were identified as the most challenging concepts for preschoolers to grasp. The results highlight the critical role of children's reflection in learning these concepts. The participants’ common naive conceptions about gear function, gear speed, and gear direction were identified. The implications of these results highlight the importance of incorporating reflective practices in early childhood education to enhance concept acquisition and address misconceptions.</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">867-881</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Peng He</style></author><author><style face="normal" font="default" size="100%">Changlong Zheng</style></author><author><style face="normal" font="default" size="100%">Tingting Li</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">UPPER SECONDARY SCHOOL STUDENTS’ CONCEPTIONS OF CHEMICAL EQUILIBRIUM IN AQUEOUS SOLUTIONS: DEVELOPMENT AND VALIDATION OF A TWO-TIER DIAGNOSTIC INSTRUMENT</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">chemical equilibrium in aqueous solutions</style></keyword><keyword><style  face="normal" font="default" size="100%">Rasch Modeling</style></keyword><keyword><style  face="normal" font="default" size="100%">two-tier multiple-choice items</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">June/2022</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2022/987-1656443763.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">21</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Student understanding of chemical equilibrium in aqueous solutions (CEAS) plays a vital role in their upper secondary school chemistry learning and everyday life. Diagnosis of students’ alternative conceptions (ACs) of the CEAS will provide teachers with valuable information to make instructional decisions on student learning. This study aims to develop and validate an instrument to diagnose students’ ACs about the CEAS, including ionization equilibrium, water self-ionization equilibrium, the equilibrium of salt hydrolysis, and precipitation and dissolution equilibrium. Using Treagust (1998)’s development framework, we have developed 25 two-tier multiple-choice items for the CEAS diagnostic test. After completing the corresponding courses, 750 Grade 11 students from five public schools responded to the CEAS diagnostic test. Rasch modeling approach was employed to provide psychometric properties of the CEAS diagnostic test consisting of one-dimensionality, reliability, and validity. This study identified 15 ACs toward the CEAS. This study found that most students performed better on concept tiers rather than reasoning tiers. In addition, students have difficulties in connecting acidity, solubility, ionization, and chemical reaction and in using mathematical thinking to do transformation between concentration, equilibrium constant, and pH value.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">428-444</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jun-Hui Yeo</style></author><author><style face="normal" font="default" size="100%">Hsi-Hsun Yang</style></author><author><style face="normal" font="default" size="100%">I-Hsuan Cho</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">USING A THREE-TIER MULTIPLE-CHOICE DIAGNOSTIC INSTRUMENT TOWARD ALTERNATIVE CONCEPTIONS AMONG LOWER-SECONDARY SCHOOL STUDENTS IN TAIWAN: TAKING ECOSYSTEMS UNIT AS AN EXAMPLE</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">ecosystem concepts</style></keyword><keyword><style  face="normal" font="default" size="100%">lower-secondary students</style></keyword><keyword><style  face="normal" font="default" size="100%">Three-Tier Diagnostic Instrument</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">February/2022</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2022/987-1647117785.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">21</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This research is conducted to identify the scientific conceptual cognition of ecosystem and the corresponding alternative conceptions by lower-secondary school students in Taiwan. Concept mapping, interviewing, and two-tier diagnostic test cannot make explicit reasoning pathways that students may use. Therefore, its purpose is to develop, validate, and utilize a three-tier multiple-choice diagnostic instrument for the ecosystem concept (TDIEC). The instrument can assist teachers in analyzing their students’ reasoning. This does not only distinguish alternative conceptions from lack of knowledge but also determines the percentages of false positives and false negatives. One hundred and six students were tested with this instrument in Taiwan. The data analysis reveals common alternative conceptions shared by students, indicating that 35.59% of the samples had inaccurate conceptualizations of ecosystems. Common alternative conceptions of ecosystems include the following: (i) Only biological components constitute an ecosystem; (ii) The Venus flytrap and pitcher plants are preys; (iii) Competition is synonymous to predation; (iv) Ecological balance refers to the sustainable circulation of energy and matter in the environment; and (v) The simpler the species, the more stable the ecosystem. It concludes with the interpretation of the results, suggestions for the application of the TDIEC, and correct alternative conceptions in Ecology classes.</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">69-83</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Reinoso Tapia, R.</style></author><author><style face="normal" font="default" size="100%">Jaime Delgado-Iglesias</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">UNDERSTANDING PRE-SERVICE TEACHER CONCEPTUAL KNOWLEDGE OF HUMAN NUTRITION PROCESSES THROUGH DRAWINGS</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">human body</style></keyword><keyword><style  face="normal" font="default" size="100%">human nutrition</style></keyword><keyword><style  face="normal" font="default" size="100%">pre-service teacher’s drawings</style></keyword><keyword><style  face="normal" font="default" size="100%">subject matter knowledge</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December/2020</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2020/987-1606572998.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">19</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Teachers' subject matter knowledge is a substantive component of the teaching-learning process. For a teacher to be able to transform and integrate into the classroom all the knowledge and experience they have acquired in the course of the professional activity, it is first necessary to acquire a deep and solid knowledge of the matter. The aim of the research was to analyse the understanding that pre-service teachers have about the physiology and anatomy of the human body. The alternative conceptions that pre-service teachers held about the nutritional function in living beings were also explored. The research was conducted on a biology course of the Primary Education Bachelor’s Degree during the 2018/2019 academic year. Drawings and open-ended questions were collected from 96 pre-service teachers. The results reveal that the students surveyed have limited knowledge of the subject before entering university. The use of drawing proved to be an excellent tool for detecting previous conceptions and evaluating the progression made by the students in their learning. Numerous alternative conceptions were identified among the students, thus demonstrating the need to think about the scientific methodology used to teach these contents.</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">1008-1019</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nadaraj Govender</style></author><author><style face="normal" font="default" size="100%">Bekele Gashe Dega</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">FRAMEWORK CATEGORIZATION OF PRE-SERVICE PHYSICS TEACHERS’ CONCEPTIONS OF VECTOR-KINEMATICS</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">categories of conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">conceptual knowledge</style></keyword><keyword><style  face="normal" font="default" size="100%">framework analysis method</style></keyword><keyword><style  face="normal" font="default" size="100%">vector-kinematics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">June/2016</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2016/987-1482422449.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">15</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Current research in physics shows that pre-service teachers have poor content knowledge in vector-kinematics. This study describes the types of categories of conceptions pre-service teachers display in vector-kinematics. Descriptive and interpretive qualitative research was conducted in which the data were concept maps from 28 third-year pre-service teacher volunteers in a physics module at a university. Participants were supported in the use of CmapTools to draw their concept maps of vector-kinematics. This study was guided by Ausubel’s theory of meaningful learning which relates individuals’ new knowledge to relevant concepts they already possess. Framework thematic analysis revealed seven knowledge categories with differing extensiveness: two of conceptual knowledge (hierarchical and relational), three of alternative conceptions (naïve, lateral, ontological) and two of mixed conceptions and loose ideas. The findings showed a lack of higher level conceptual understanding of vector-kinematics. The study has implications for the teaching and learning of vector-kinematics. </style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">325-339</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Harika Özge Arslan</style></author><author><style face="normal" font="default" size="100%">Ömer Geban</style></author><author><style face="normal" font="default" size="100%">Necdet Sağlam</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">LEARNING CYCLE MODEL TO FOSTER CONCEPTUAL UNDERSTANDING IN CELL DIVISION AND REPRODUCTION CONCEPTS</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">biology education</style></keyword><keyword><style  face="normal" font="default" size="100%">cell division</style></keyword><keyword><style  face="normal" font="default" size="100%">learning cycle</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">October/2015</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2016/987-1479543262.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">What should teachers do to ensure a student construct meaningful understanding in cell division and reproduction concepts? This research examined the effect of 5E learning cycle on 10th grade students’ understanding of cell division and reproduction concepts and their alternative conceptions on these concepts. Mixed methods research design was utilized for this aim. Eight classes with 228 students from two public high schools were selected conventionally. Experimental groups received learning cycle (LC) and control groups received conventional teaching (CT) throughout the 10 weeks. A three-tier diagnostic test was administered to both groups as pre and post-tests. After the treatment, 12 students were interviewed semi-structurally. The results revealed that learning cycle is superior to conventional teaching on promoting conceptual change along with increasing understanding. The present research recommends teachers utilize learning cycle to improve students’ understanding and remediate their alternative conceptions. </style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">670–684 </style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Eliza Rybska</style></author><author><style face="normal" font="default" size="100%">Sue Dale Tunnicliffe</style></author><author><style face="normal" font="default" size="100%">Zofia Anna Sajkowska</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">YOUNG CHILDREN’S IDEAS ABOUT SNAIL INTERNAL ANATOMY</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">Mental Models</style></keyword><keyword><style  face="normal" font="default" size="100%">scientific phenomena</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December/2014</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2015/987-1450982532.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Drawings can serve as a useful tool for analyzing children’s understanding of scientific phenomena. This study examined children’s understandings about internal structure of the snail. Children from kindergarten at age 5 and from primary school of age 7 and 10, were asked to draw their concept about the internal structure of the snail. The results demonstrate the alternative conceptions held by the children. Analysis showed some significant differences in interpretation between both age groups and gender. Age related differences were in understanding of nervous, circulatory, muscle and digestive system, and such features as food, bones and mucus. Gender differences were not so significant at present studies. There were only few statistically significant observations concerning gender, that boys more often than girls consider mucus and other organisms (such as bacteria) as a part of snail internal structure. The girls drew more in the category food (7 years old) and bones (10 years old). The results also revealed ideas which made sense to the learner, but are not biologically accurate, such as organs located in the foot. </style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">828–838 </style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mehmet   Yakışan</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">THE ALTERNATIVE CONCEPTIONS OF PRE-SERVICE TEACHERS CONCERNING THE STATUS OF ORGANELLES DURING CELL DIVISION</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">cell division</style></keyword><keyword><style  face="normal" font="default" size="100%">organelles</style></keyword><keyword><style  face="normal" font="default" size="100%">pre-service teachers</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December/2013</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2015/987-1425811690.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The aim of this study was to identify pre-service teachers' alternative conceptions concerning the status of organelles during cell division. A total of 212 pre-service teachers participated in the study. Data were collected by asking open-ended questions of all pre-service teachers, and semi-structured interviews were conducted with 12 participants. Data were analyzed by coding data segments within 11 categories. Categories were tabulated and interpreted by including sample data sections about the codes. 
 The results indicated that there were some students who explained that no organelle dissolved or disappeared and no change occurred in any organelles during cell division besides pre-service teachers who said that all organelles dissolved and disappeared during cell division. In addition, a few pre-service teachers thought that while some organelles dissolved and disappeared, others did not. It was understood that those pre-service teachers were confused about which structures and organelles disappeared and which ones continued their existence, and they had various alternative conceptions. Moreover, pre-service teachers had alternative conceptions regarding the status of organelles particularly about structures such as chromosome, centrosome, DNA, and RNA. </style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">813-828</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pavol Prokop</style></author><author><style face="normal" font="default" size="100%">Muhammet Usak</style></author><author><style face="normal" font="default" size="100%">Murat Özel</style></author><author><style face="normal" font="default" size="100%">Jana Fančovičová</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CHILDREN’S CONCEPTIONS OF ANIMAL BREATHING: A CROSS – AGE AND CROSS – CULTURAL COMPARISON</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">breathing</style></keyword><keyword><style  face="normal" font="default" size="100%">primary children</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">October/2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2014/987-1404740367.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">8</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Research on children’s ideas about biological phenomena showed that their interpretations of natural phenomena often differ from those of scientists. The purpose of this study was to investigate children’s ideas about animal breathing systems. This study was descriptive in nature and consisted of a cross age and cross cultural design involving the collection of qualitative data from a total of 549 children from two distinct countries, Slovakia (n = 248) and Turkey (n = 301). The results revealed that understandings of invertebrates breathing systems were generally poorer than understandings of vertebrates breathing systems. Turkish children acquired better scores than Slovakian children. Although some children were able to identify breathing organs of animals, they had difficulties with describing how breathing works.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">191-207 </style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nicos Valanides</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ASPECTS OF CONSTRUCTIVISM</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Baltic Science Education</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alternative conceptions</style></keyword><keyword><style  face="normal" font="default" size="100%">conceptual change</style></keyword><keyword><style  face="normal" font="default" size="100%">constructivism</style></keyword><keyword><style  face="normal" font="default" size="100%">science education</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year><pub-dates><date><style  face="normal" font="default" size="100%">October/2002</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2017/987-1504180830.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">1</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">An experimental setting was used in a class of 23 sixth-grade students to prompt discussions about shadows.  A rectangular wooden block with an incandescent electric lamp, mounted in the middle of each side, consisted the experimental setting.  Additionally, there was a fifth lamp that was positioned exactly above the house and could be removed at any time.  Each lamp could be replaced by other lamps of different colours and could be turned on and off independently.  A two-dimensional model of a house, made of opaque cardboard, was also mounted upright at the center of the wooden block.  The model showed a house with an inclined roof, a chimney, and one door and two windows that were represented using three movable pieces of cardboard.  Students were asked to predict the position and other characteristics of the shadow when (a) each one of the five lamps was turned on individually, and (b) two lamps mounted on opposing sides of the wooden block were turned on simultaneously.  Discussions were facilitated in order to create cognitive dissonance in students’ thinking and support the consequent psychological process of equilibration through a collaborative negotiation of students’ diverse understandings.  The transcribed discussions were analyzed in an attempt to exemplify the importance of the social interaction between students’ knowledge schemes and their experience with the environment (physical and human), as well as aspects of the scientific epistemology and their relevance to conceptual change. </style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">50 - 58</style></section></record></records></xml>