Refining Students’ Explanations of an Unfamiliar Physical Phenomenon-Microscopic Friction

Research in Science Education - The first phase of this multiphase study involves modeling of college students’ thinking of friction at the microscopic level. Diagnostic interviews were...     

Constructing Scientific Explanations: a System of Analysis for Students’ Explanations

Research in Science Education - This article describes a system of analysis aimed at characterizing students’ scientific explanations. Science education literature and reform documents have...     

Investigating Students’ Learning Through Co-designing with Technology

Involving students in the co-design of educational curricula and practices can benefit both students and teachers. Students who participate in co-design may show better learning or increased agency or engagement. In the present study, we investigated what kind of science knowledge or practices can be learned by student co-designers while engaging in co-design practices and how that learning happens with six high school students. We created a model to guide the analysis of students’ learning with technology in co-designing processes. The results revealed that students learned engineering design process even if no explicit instruction on engineering learning was given. Also, our analysis suggested that co-designing with technology enabled learning of the engineering design process and potentially furthered learning of science because it promoted knowledge integration. The results have implications for understanding and enhancing engineering design and science learning through co-designing with technology.

     

Investigating the Impact of Using a CAD Simulation Tool on Students’ Learning of Design Thinking

Engineering design thinking is hard to teach and still harder to learn by novices primarily due to the undetermined nature of engineering problems that often results in multiple solutions. In this paper, we investigate the effect of teaching engineering design thinking to freshmen students by using a computer-aided Design (CAD) simulation software. We present a framework for characterizing different levels of engineering design thinking displayed by students who interacted with the CAD simulation software in the context of a collaborative assignment. This framework describes the presence of four levels of engineering design thinking—beginning designer, adept beginning designer, informed designer, adept informed designer. We present the characteristics associated with each of these four levels as they pertain to four engineering design strategies that students pursued in this study—understanding the design challenge, building knowledge, weighing options and making tradeoffs, and reflecting on the process. Students demonstrated significant improvements in two strategies—understanding the design challenge and building knowledge. We discuss the affordances of the CAD simulation tool along with the learning environment that potentially helped students move towards Adept informed designers while pursuing these design strategies.     

Investigating higher Education Students’ Professional Socialisation: a revised framework

Research on professional socialisation in higher education has been conducted in nursing, pharmacy, teaching and law, but there is a lack of studies on professional socialisation in tourism and hospitality education. This paper contributes to the body of knowledge by revising the professional socialisation framework ‘Conceptualising Graduate and Professional Student Socialisation’ through the findings of a broader study on the professional socialisation of Chinese international students enrolled in tourism and hospitality degrees at a particular Australian university. The study examined diverse stakeholders’ perceptions of attributes needed by Chinese graduates with Australian university qualifications in tourism and hospitality management entering the Chinese hotel industry. The revised framework, ‘Higher Education Students’ Professional Socialisation Framework’, suggests different processes for enhancing the socialisation and career development of Chinese international students with an Australian tourism and hospitality management degree through work-integrated learning; language learning and communication; teamwork and mentoring; and interactions among different stakeholders. Furthermore, workplace socialisation emphasises mentoring and recognises different approaches to career development. Finally, the revised framework explains how the different stakeholders impact on the professional socialisation of students and graduates. The revised framework, which has a cross-cultural dimension, is generic and can be applied to other fields of study and to both international and domestic students in higher education.     

Students’ conceptions about a fair assessment of their learning

The objective of this study is to know the conceptions of primary and secondary school students about what constitutes a fair assessment. To achieve this aim, a phenomenographic study was carried out with 32 students. In a broad sense, the results showed that there were two types of conceptions. On one hand, a conception of fair assessment related to equality, transparency, objectivity, and evaluation of class content; that is, an egalitarian conception of fair assessment. On the other hand, a conception associated with ideas such as adaptation, diversification of tests, and qualitative assessment, even taking into account students' effort and attitudes, which define a conception of fair assessment linked to equity. These conceptions are associated with the concepts of legal justice and social justice, respectively and they contrast with the nature of external evaluations currently carried out.     

Investigating Students’ Conceptions of Technology-Assisted Science Learning: a Drawing Analysis

This study investigated high school students’ conceptions of technology-assisted science learning via drawing analysis, and explored how students with different degrees of computer experience and science learning self-efficacy may show different conceptions via their drawings. The participants included 335 senior high school students in Taiwan (179 male and 156 female). All of them were asked by guiding questions to make two drawings to represent their conceptions of technology-assisted science learning in actual and ideal contexts, respectively. Their background information including computer experience and science learning self-efficacy were obtained using self-reported questionnaires. Through drawing analysis, seven categories of conceptions of technology-assisted science learning were identified, including types of technology, location of learning, types of learning activities, content of learning, participants of learning activities, affordance of learning technology, and effects of learning technology. The results further revealed that the students’ conceptions of actual and ideal technology-assisted science learning significantly differed in some sub-categories of all categories except the category of participants of learning activities. Moreover, students’ computer experience and science learning self-efficacy may link to different conceptions of technology-assisted science learning. Future research and directions are also discussed.

     

Students’ reasoning about electricity: combining performance assessments with argumentation analysis

Our study monitored the cognitive and motivational effects within different educational instruction schemes: On the one hand, teacher‐centred versus hands‐on instruction; on the other hand, hands‐on instruction with and without a knowledge consolidation phase (concept mapping). All the instructions dealt with the same content. For all participants, the hands‐on approach as well as the concept mapping adaptation were totally new. Our hands‐on approach followed instruction based on “learning at work stations”. A total of 397 high‐achieving fifth graders participated in our study. We used a pre‐test, post‐test, retention test design both to detect students' short‐term learning success and long‐term learning success, and to document their decrease rates of newly acquired knowledge. Additionally, we monitored intrinsic motivation. Although the teacher‐centred approach provided higher short‐term learning success, hands‐on instruction resulted in relatively lower decrease rates. However, after six weeks, all students reached similar levels of newly acquired knowledge. Nevertheless, concept mapping as a knowledge consolidation phase positively affected short‐term increase in knowledge. Regularly placed in instruction, it might increase long‐term retention rates. Scores of interest, perceived competence and perceived choice were very high in all the instructional schemes.     

Scaffolding Middle School Students’ Construction of Scientific Explanations: Comparing a cognitive versus a metacognitive evaluation approach

This study investigated the effects of scaffolds as cognitive prompts and as metacognitive evaluation on seventh-grade students' growth of content knowledge and construction of scientific explanations in five inquiry-based biology activities. Students' scores on multiple-choice pretest and posttest and worksheets for five inquiry-based activities were analyzed. The results show that the students' content knowledge in all conditions significantly increased from the pretest to posttest. Incorporating cognitive prompts with the explanation scaffolds better facilitated knowledge integration and resulted in greater learning gains of content knowledge and better quality evidence and reasoning. The metacognitive evaluation instruction improved all explanation components, especially claims and reasoning. This metacognitive approach also significantly reduced students' over- or underestimation during peer-evaluation by refining their internal standards for the quality of scientific explanations. The ability to accurately evaluate the quality of explanations was strongly associated with better performance on explanation construction. The cognitive prompts and metacognitive evaluation instruction address different aspects of the challenges faced by the students, and show different effects on the enhancement of content knowledge and the quality of scientific explanations. Future directions and suggestions are provided for improving the design of the scaffolds to facilitate the construction of scientific explanations.     

Primary and Secondary Students’ Understanding of the Rainfall Phenomenon and Related Water Systems: a Comparative Study of Two Methodological Approaches

Rainfall is a key process in the water cycle, the most structured scientific knowledge about water movement on Earth. Nevertheless, despite being a common topic covered in school science, it entails several cognitive difficulties for young children. This study uses a pictorial task and semi-opened questions to examine primary (11/12 years old) and secondary (12/13 years old) students’ understanding of the elements and processes involved in the hydrologic cycle and how they are integrated into their explanations regarding the rainfall phenomenon. Overall, we have found that the studied children’s (n = 246) conceptual knowledge increases with age. However, they have an incomplete perception of the mechanism of rainfall and its integration into the water cycle. In fact, not all the students have a cyclic notion of water dynamics; they also miss the inclusion and role of groundwater in water systems and present misconceptions regarding key processes, such as condensation and evaporation. Regarding the two diagnostic tools (drawings and questionnaires) used to study children’s understanding, although questionnaires seem more appropriate for assessing lower conceptual levels, each methodological approach is useful for detecting different key concepts and misconceptions related to the rainfall phenomenon and related water cycle. Consequently, a mixed research design using different methods is advised for a comprehensive study of students’ conceptions.

     

An Investigation of University Students’ Collaborative Inquiry Learning Behaviors in an Augmented Reality Simulation and a Traditional Simulation

The purpose of this study is to investigate and compare students’ collaborative inquiry learning behaviors and their behavior patterns in an augmented reality (AR) simulation system and a traditional 2D simulation system. Their inquiry and discussion processes were analyzed by content analysis and lag sequential analysis (LSA). Forty university students were divided into dyads and then randomly assigned into AR group and traditional 2D group to collaboratively conduct an inquiry task about elastic collision. The results of the content analysis and LSA indicated that both systems supported students’ collaborative inquiry learning. Particularly, students showed high frequencies on higher-level inquiry behaviors, such as interpreting experimental data or making conclusions, when using these two simulations. By comparing the behavioral patterns, similarities and differences between the two groups were revealed. The AR simulation engaged the students more thoroughly in the inquiry process. Moreover, students in both groups adopted the same approaches to design experiments. Due to the line of AR research is in its initial stage, suggestions for future studies were proposed.     

Investigating the Alignment of Bhutanese Mathematics Teachers’ Planned Approaches Within the Context of a Reformed Curriculum

Reform of mathematics education has been in focus in many countries including those in major economic transition. This paper reports a segment of a study which was conducted in Bhutan, where a reformed elementary mathematics curriculum has been recently introduced. The reformed curriculum is based on social constructivism and its design has been influenced by the USA’s National Council of Teachers of Mathematics (NCTM) standards. This paper reports upon the planned teaching of a sample of elementary (primary) teachers in their implementation of the reformed curriculum. The data for this part of the investigation were aggregated from a qualitative survey of randomly selected elementary school teachers (N = 72) from 40 schools across the country. A set of 3 analytical rubrics, based on intentions embedded in the curriculum, was developed to analyse the alignment of teachers’ planned sample learning activities with the intentions of the curriculum. Our conclusions are that while the curriculum’s intentions might be meaningfully stated in the curriculum documents, implementation remains problematic because there appears to be a mis-alignment between curriculum intentions and classroom practices. For instance, teachers by not adopting evidence-based approaches recommended in the curriculum document and are continuing to deny students opportunities to achieve deep understanding in achieving national priorities. This paper also argues that the proposed analytical rubrics may be of value for Bhutanese mathematics educators and, with minor modification, educators in other contexts, as they critique planned and actual practices.     

Workshop on Friction: Understanding and Addressing Students’ Difficulties in Learning Science Through a Hermeneutical Perspective

Hermeneutics is useful in science and science education by emphasizing the process of understanding. The purpose of this study was to construct a workshop based upon hermeneutical principles and to interpret students’ learning in the workshop through a hermeneutical perspective. When considering the history of Newtonian mechanics, it could be considered that there are two methods of approaching Newtonian mechanics. One method is called the ‘prediction approach’, and the other is called the ‘explanation approach’. The ‘prediction approach’ refers to the application of the principles of Newtonian mechanics. We commonly use the prediction approach because its logical process is natural to us. However, its use is correct only when a force, such as gravitation, is exactly known. On the other hand, the ‘explanation approach’ could be used when the nature of a force is not exactly known. In the workshop, students read a short text offering contradicting ideas about whether to analyze a friction situation using the explanation approach or the prediction approach. Twenty-two college students taking an upper-level mechanics course wrote their ideas about the text. The participants then discussed their ideas within six groups, each composed of three or four students. Through the group discussion, students were able to clarify their preconceptions about friction, and they responded to the group discussion positively. Students started to think about their learning from a holistic perspective. As students thought and discussed the friction problems in the manner of hermeneutical circles, they moved toward a better understanding of friction.     

Changes in Students’ Views about Nature of Scientific Inquiry at a Science Camp

Although nature of science (NOS) and nature of scientific inquiry (NOSI) are related to each other, they are differentiated as NOS is being more related to the product of scientific inquiry (SI) which is scientific knowledge whereas NOSI is more related to the process of SI (Schwartz et al. 2008). Lederman et al. (Journal of Research in Science Teaching, 51, 65–8, 2014) determined eight NOSI aspects for K-16 context. In this study, a science camp was conducted to teach scientific inquiry (SI) and NOSI to 24 6th and 7th graders (16 girls and 8 boys). The core of the program was guided inquiry in nature. The children working in small groups under guidance of science advisors conducted four guided-inquiries in the nature in morning sessions on nearby plants, animals, water, and soil. NOSI aspects were made explicit during and at the end of each inquiry session. Views about scientific inquiry (VASI) (Lederman et al. Journal of Research in Science Teaching, 51, 65–8, 2014) questionnaire was applied as pre- and post-test. The results of the study showed that children developed in all eight NOSI aspects, but higher developments were observed in “scientific investigations all begin with a question” and “there is no single scientific method,” and “explanations are developed from data and what is already known” aspects. It was concluded that the science camp program was effective in teaching NOSI.     

Historical Reasoning: Towards a Framework for Analyzing Students’ Reasoning about the Past

This article explores historical reasoning, an important activity in history learning. Based upon an extensive review of empirical literature on students’ thinking and reasoning about history, a theoretical framework of historical reasoning is proposed. The framework consists of six components: asking historical questions, using sources, contextualization, argumentation, using substantive concepts, and using meta-concepts. Each component is discussed and illustrated by examples from our own research. The article concludes with suggestions on how to use the framework both in future research and in educational practice.     

The Impact of a Web-Based Research Simulation in Bioinformatics on Students’ Understanding of Genetics

Providing learners with opportunities to engage in activities similar to those carried out by scientists was addressed in a web-based research simulation in genetics developed for high school biology students. The research simulation enables learners to apply their genetics knowledge while giving them an opportunity to participate in an authentic genetics study using bioinformatics tools. The main purpose of the study outlined here is to examine how learning using this research simulation influences students’ understanding of genetics, and how students’ approaches to learning using the simulation influence their learning outcomes. Using both quantitative and qualitative procedures, we were able to show that while learning using the simulation students expanded their understanding of the relationships between molecular mechanisms and phenotype, and refined their understanding of certain genetic concepts. Two types of learners, research-oriented and task-oriented, were identified on the basis of the differences in the ways they seized opportunities to recognize the research practices, which in turn influenced their learning outcomes. The research-oriented learners expanded their genetics knowledge more than the task-oriented learners. The learning approach taken by the research-oriented learners enabled them to recognize the epistemology that underlies authentic genetic research, while the task-oriented learners referred to the research simulation as a set of simple procedural tasks. Thus, task-oriented learners should be encouraged by their teachers to cope with the scientists’ steps, while learning genetics through the simulation in a class setting.     

Evaluating Secondary Students’ Scientific Reasoning in Genetics Using a Two‐Tier Diagnostic Instrument

While genetics has remained as one key topic in school science, it continues to be conceptually and linguistically difficult for students with the concomitant debates as to what should be taught in the age of biotechnology. This article documents the development and implementation of a two‐tier multiple‐choice instrument for diagnosing grades 10 and 12 students’ understanding of genetics in terms of reasoning. The pretest and posttest forms of the diagnostic instrument were used alongside other methods in evaluating students’ understanding of genetics in a case‐based qualitative study on teaching and learning with multiple representations in three Western Australian secondary schools. Previous studies have shown that a two‐tier diagnostic instrument is useful in probing students’ understanding or misunderstanding of scientific concepts and ideas. The diagnostic instrument in this study was designed and then progressively refined, improved, and implemented to evaluate student understanding of genetics in three case schools. The final version of the instrument had Cronbach’s alpha reliability of 0.75 and 0.64, respectively, for its pretest and the posttest forms when it was administered to a group of grade 12 students (n = 17). This two‐tier diagnostic instrument complemented other qualitative data collection methods in this research in generating a more holistic picture of student conceptual learning of genetics in terms of scientific reasoning. Implications of the findings of this study using the diagnostic instrument are discussed.     

What is this Substance? What Makes it Different? Mapping Progression in Students’ Assumptions about Chemical Identity

Given the diversity of materials in our surroundings, one should expect scientifically literate citizens to have a basic understanding of the core ideas and practices used to analyze chemical substances. In this article, we use the term ‘chemical identity' to encapsulate the assumptions, knowledge, and practices upon which chemical analysis relies. We conceive chemical identity as a core crosscutting disciplinary concept which can bring coherence and relevance to chemistry curricula at all educational levels, primary through tertiary. Although chemical identity is not a concept explicitly addressed by traditional chemistry curricula, its understanding can be expected to evolve as students are asked to recognize different types of substances and explore their properties. The goal of this contribution is to characterize students' assumptions about factors that determine chemical identity and to map how core assumptions change with training in the discipline. Our work is based on the review and critical analysis of existing research findings on students' alternative conceptions in chemistry education, and historical and philosophical analyses of chemistry. From this perspective, our analysis contributes to the growing body of research in the area of learning progressions. In particular, it reveals areas in which our understanding of students' ideas about chemical identity is quite robust, but also highlights the existence of major knowledge gaps that should be filled in to better foster student understanding. We provide suggestions in this area and discuss implications for the teaching of chemistry.     

Students’ Reflections on the Benefits of a Financial Simulation Through “Thank You Notes”

Abstract

As an instructional strategy, simulations have become common in the field of education. While they have been effective at imparting knowledge and skills, not all simulation experiences meet their objectives. This study determined the effectiveness of a financial simulation, the Reality Store®, aimed at teaching financial literacy and life skills to youth. Data were collected from Thank You notes written by middle school students who had participated in the simulation. These notes were combined with data from post-simulation surveys to ensure trustworthy results. Overall, students were satisfied with the simulation experience and learned that: adult life is hard; children are expensive; and the need for budgeting and saving money is essential. Recommendations for teaching financial literacy and life skills using simulations are provided.