Concept maps as a heuristic for science curriculum development: Toward improvement in process and product

This article outlines the use of concept maps as a tool for science curriculum development and discusses the changes that occur in the teacher's view of the curriculum with successive revisions of the maps. Although we have used concept mapping in curriculum development with teachers from grades 4–8, we describe in detail the maps created by sixth-grade teachers. We analyzed the maps using three criteria: hierarchical structure, progressive differentiation, and integrative reconciliation. Changes made to the maps during the revision process, including additions and deletions, show increased clarification of both the concepts to be learned and the connections between them. Consecutive map revisions show the development of a cohesive conceptual grade-six science curriculum. The use of concept maps can help science teachers develop science curriculum that is hierarchically arranged, integrated, and conceptually driven.     

Collaboration modality, cognitive load, and science inquiry learning in virtual inquiry environments

Educational multi-user virtual environments (MUVEs) have been shown to be effective platforms for situated science inquiry curricula. While researchers find MUVEs to be supportive of collaborative scientific inquiry processes, the complex mix of multi-modal messages present in MUVEs can lead to cognitive overload, with learners unable to effectively process the rich information encountered in virtual space. In this study, we investigated the effect of communication modality on cognitive load and science inquiry learning in students completing a science inquiry curriculum in an educational MUVE. Seventy-eight undergraduate education majors from a large southwestern university participated in this control-treatment study. Significant positive results were found for reducing cognitive load for participants communicating through voice-based chat, although this reduction was not found to influence learning outcomes. We conclude that use of voice-based communication can successfully reduce cognitive load in MUVE-based inquiry curricula.     

Fostering personalized learning in science inquiry supported by mobile technologies

In this paper, we present a mobile technology-assisted seamless learning process design where students were facilitated to develop their personalized and diversified understanding in a primary school??s science topic of the life cycles of various living things. A goal-based approach to experiential learning model was adopted as the pedagogical design to support the student??s personalized learning process. We chose to report the student??s inquiry into the life cycles of the spinach plant and the butterfly to pinpoint the how the student??s personalized learning was fostered in the experiential learning. The learning process consisted of (a) in-class enculturation and question posing; (b) out-of-class field trip observation; (c) on site reflection after observation; (c) data collection and conceptualization of life cycles in the field trip; (d) the hands-on experimentation of growing the spinach plant and rearing a butterfly after the trip at home; (e) creation of animations and composition based on the hands-on experience individually either at home or in class to re-conceptualize the life cycles of the spinach plant and the butterfly, and (f) sharing and evaluation of their work in class. Each student was assigned a smartphone on a 1:1, 24?×?7 basis, which was used by individuals to mediate their seamless learning experience across multiple contexts. Through our analysis of the learning content, processes and products, we illuminate how the goal-based approach applied to mobile-assisted experiential learning facilitates students?? personalized learning and helps them to fulfill their agency in such learning experiences.     

Learning with collaborative inquiry: a science learning environment for secondary students

When inquiry-based learning is designed for a collaborative context, the interactions that arise in the learning environment can become fairly complex. While the learning effectiveness of such learning environments has been reported in the literature, there have been fewer studies on the students’ learning processes. To address this, the article presents a study of science learning in a computer-supported learning environment called Collaborative Science Inquiry (CSI), which integrates guided inquiry principles for activity design, employs modelling and visualisation tools for promoting conceptual understanding and incorporates key computer-supported collaborative learning (CSCL) elements for enabling students’ collaboration. With the aim of understanding the process of students’ conceptual changes supported by the CSI learning environment as used in a secondary school, data on students’ test achievements, responses to learning tasks and peer discussions in collaboration were collected, analysed and discussed. The results of the qualitative and quantitative data analysis indicated that guided inquiry coupled with CSCL elements facilitated by the CSI system can engage students in inquiry activities and promote their conceptual understanding in a progressive way.     

Posthumanism as research methodology: inquiry in the Anthropocene

The posthuman turn has radically–and rapidly–shifted what is possible in research methodology. In response, my aim in this conceptual paper is to suggest entry points into posthuman educational research methodology. I outline aspects of posthumanism while recognizing its multiplicity: there are many posthumanisms and each offers different twists, turns, and ways of thinking about methodology. In unfolding the potentials thereof, I locate posthumanism within our current epoch, which some scholars have suggested be renamed the Anthropocene to account for the impact of humanity on the planet. Then, I describe how posthumanism situates, processes, and affirms knowledge in interconnected and material contexts. Next, I consider how non-representational research imagines and animates methodologies that think differently. I conclude by discussing a postdisciplinary future for more-than-critical inquiries. Significantly, this article addresses recent advancements in posthuman research and engages with ongoing theoretical, methodological, and ethical debates.     

Applying machine learning in science assessment: a systematic review

ABSTRACT

Machine learning (ML) is an emergent computerised technology that relies on algorithms built by ‘learning’ from training data rather than ‘instruction’, which holds great potential to revolutionise science assessment. This study systematically reviewed 49 articles regarding ML-based science assessment through a triangle framework with technical, validity, and pedagogical features on three vertices. We found that a majority of the studies focused on the validity vertex, as compared to the other two vertices. The existing studies primarily involve text recognition, classification, and scoring with an emphasis on constructing scientific explanations, with a vast range of human-machine agreement measures. To achieve the agreement measures, most of the studies employed a cross-validation method, rather than self- or split-validation. ML allows complex assessments to be used by teachers without the burden of human scoring, saving both time and cost. Most studies used supervised ML, which relies on extraction of attributes from student work that was first coded by humans to achieve automaticity, rather than semi- or unsupervised ML. We found that 24 studies were explicitly embedded in science learning activities, such as scientific inquiry and argumentation, to provide feedback or learning guidance. This study identifies existing research gaps and suggests that all three vertices of the ML triangle should be addressed in future assessment studies, with an emphasis on the pedagogy and technology features.     

Metacognitive and multimedia support of experiments in inquiry learning for science teacher preparation

ABSTRACT

Promoting preservice science teachers’ experimentation competency is required to provide a basis for meaningful learning through experiments in schools. However, preservice teachers show difficulties when experimenting. Previous research revealed that cognitive scaffolding promotes experimentation competency by structuring the learning process, while metacognitive and multimedia support enhance reflection. However, these support measures have not yet been tested in combination. Therefore, we decided to use cognitive scaffolding to support students’ experimental achievements and supplement it by metacognitive and multimedia scaffolds in the experimental groups. Our research question is to what extent supplementing cognitive support by metacognitive and multimedia scaffolding further promotes experimentation competency. The intervention has been applied in a two-factorial design to a two-month experimental course for 63 biology teacher students in their first bachelor year. Pre-post-test measured experimentation competency in a performance assessment. Preservice teachers worked in groups of four. Therefore, measurement took place at group level (N?=?16). Independent observers rated preservice teachers’ group performance qualitatively on a theory-based system of categories. Afterwards, experimentation competency levels led to quantitative frequency analysis. The results reveal differing gains in experimentation competency but contrary to our hypotheses. Implications of combining scaffolding measures on promoting experimentation competency are discussed.     

The effects of computer-supported self-regulation in science inquiry on learning outcomes,learning processes,and self-efficacy

Recently, researchers have demonstrated the benefits of technology-enhanced science inquiry activities. To improve students’ self-regulation and assist them in controlling their own learning pace through inquiry activities, in this study, a self-regulated science inquiry approach was developed to assist them in organizing information from their real-world exploration. A quasi-experimental design was conducted in an elementary school natural science course to evaluate the students’ performance using the proposed learning approach. One class assigned as the treatment group learned with the self-regulated science inquiry approach, while the other class assigned as the control group learned with the conventional science inquiry approach. The students’ learning achievement, tendency of information help seeking, tendency of self-regulation, and self-efficacy were evaluated. The results of the study revealed that the self-regulated science inquiry approach improved the students’ learning achievement, especially for those students with higher self-regulation. In addition, the students who conducted inquiry with the self-regulated learning strategy increased their tendency of information help seeking, self-efficacy, and several aspects of self-regulation, including time management, help seeking, and self-evaluation. Accordingly, this study demonstrated the effectiveness of the self-regulated learning strategy, an approach with high learner control, in terms of improving students’ learning achievement and their self-regulation.     

Problems and issues in the use of concept maps in science assessment

The search for new, authentic science assessments of what students know and can do is well under way. This has unearthed measures of students' hands-on performance in carrying out science investigations, and has been expanded to discover more or less direct measures of students' knowledge structures. One potential finding is concept mapping, the focus of this review. A concept map is a graph consisting of nodes representing concepts and labeled lines denoting the relation between a pair of nodes. A student's concept map is interpreted as representing important aspects of the organization of concepts in his or her memory (cognitive structure). In this article we characterize a concept map used as an assessment tool as: (a) a task that elicits evidence bearing on a student's knowledge structure in a domain, (b) a format for the student's response, and (c) a scoring system by which the student's concept map can be evaluated accurately and consistently. Based on this definition, multiple concept-mapping techniques were found from the myriad of task, response format, and scoring system variations identified in the literature. Moreover, little attention has been paid to the reliability and validity of these variations. The review led us to arrive at the following conclusions: (a) an integrative working cognitive theory is needed to begin to limit this variation in concept-mapping techniques for assessment purposes; (b) before concept maps are used for assessment and before map scores are reported to teachers, students, the public, and policy makers, research needs to provide reliability and validity information on the effect of different mapping techniques; and (c) research on students' facility in using concept maps, on training techniques, and on the effect on teaching is needed if concept map assessments are to be used in classrooms and in large-scale accountability systems. © 1996 John Wiley & Sons, Inc.     

Reconceptualising inquiry in science education

Decades of discussion and debate about how science is most effectively taught and learned have resulted in a number of similar but competing inquiry models. These aim to develop students learning of science through approaches which reflect the authenticity of science as practiced by professional scientists while being practical and manageable within the school context. This paper offers a collection of our current reflections and suggestions concerning inquiry and its place in science education. We suggest that many of the current models of inquiry are too limited in their vision concerning themselves, almost exclusively, with producing a scaffold which reduces the complex process of inquiry into an algorithmic approach based around a sequence of relatively simple steps. We argue that this restricts students’ experience of authentic inquiry to make classroom management and assessment procedures easier. We then speculate that a more integrated approach is required through an alternative inquiry model that depends on three dimensions (conceptual, procedural and personal) and we propose that it will be more likely to promote effective learning and a willingness to engage in inquiry across all facets of a students’ school career and beyond.     

Open educational resources in support of science learning: tools for inquiry and observation

This article focuses on the potential of free tools, particularly inquiry tools for influencing participation in twenty-first-century learning in science, as well as influencing the development of communities around tools. Two examples are presented: one on the development of an open source tool for structured inquiry learning that can bridge the formal/informal spaces for inquiry learning. This is contrasted with an example of the use of free tools and community development for observation of scientific phenomena supported by open educational resources (OER) with a citizen science perspective. The article provides an assessment of how the availability of the resources has a potential for shaping the communities using OER for science learning and a discussion of the means of supporting inquiry.     

ESP研究性学习模式中形成性评价的实践研究

ESP成为中国大学英语的一个发展方向。研究性学习是学生主动探究的一种学习方式,非常符合ESP课程的特点。本文旨在通过构建与实施形成性评价方式,研究ESP课程中实施研究性学习的效果。研究表明,形成性评价在研究性学习模式中合理运用能使评价信度更高;同时形成性评价方式能进一步促进ESP课程中研究性学习的效果。     

Inquiry-based learning with young learners: a Peirce-based model employed to critique a unit of inquiry on maps and mapping

Inquiry-based learning (IBL) has become a common theme in both school and higher education in recent years. It suggests a model of curriculum development and practice that moves educational debate beyond teacher or student-based approaches towards a model of teaching and learning in which the endeavour is shared. This paper discusses an investigation into the practice of IBL among primary schoolchildren in the setting of the Primary Years Programme of the International Baccalaureate. Three ideas from the work of the philosopher C.S. Peirce are used to provide an epistemological base for analysing the pedagogical practice of IBL: semiotics, reasoning and community of inquiry. Findings are presented under these three headings to illustrate the potency of Peirce's conceptualisation of learning. Drawing in particular on findings from a unit of inquiry on maps and mapping, it suggests an empirical frame for IBL for the use of teachers in the development and assessment of IBL.     

Facilitating deep-strategy behaviors and positive learning performances in science inquiry activities with a 3D experiential gaming approach

ABSTRACT

Facilitating students’ deep-strategy behaviors and positive learning performances of science inquiry is an important and challenging educational issue. In this study, a contextual science inquiry approach is proposed for developing a 3D experiential game to cope with this problem. To evaluate the impacts of the game on students’ science learning approaches, learning achievements and problem-solving awareness as well as the learning behavioral patterns of the students with different learning achievements, a quasi-experiment was conducted in an elementary school geoscience course. The participants were two classes of sixth graders. One class was the experimental group who learned with the 3D experiential game, and the other was the control group who learned with the conventional technology-enhanced learning approach. The experimental results showed that the students learning with the 3D experiential gaming system showed better learning achievements, problem-solving tendency, deep learning strategies, and deep learning motive than those who learned with the conventional technology-enhanced learning approach. Moreover, the higher-achievement students showed more behavioral patterns of deep learning strategies than the lower-achievement students. The findings of this study provide a good reference for helping lower-achievement students improve their learning performance.     

Predicting elementary science learning using national assessment data

This study made use of data collected during 1981—1982 from a random sample of 1960 nine-year-old students from 124 elementary schools involved in a national assessment of educational progress in science sponsored by the National Science Foundation. This data base was used in secondary analyses which probed the validity of a model of educational productivity involving a set of nine aptitudinal, instructional, and environmental variables which require optimization to increase student learning. When controlled for other factors, ability, motivation, class environment, home environment, amount of television viewing (negative direction), gender, and race were all found to be significantly related to achievement. For an attitude outcome, the factors linked with attitudinal attainment were ability, motivation, class environment, and race. Overall the findings supported the model of educational productivity and suggested that elementary science students' achievement and attitude are influenced jointly by a number of factors rather than one or two dominant ones. Also the study attests to the potential value of science education researchers performing secondary analyses on the high-quality random data bases generated as part of this national assessment.     

How learning to become a teacher-researcher prepared an educator to do science inquiry with elementary grade students

This autobiographical case study describes the development of the practices and perspectives of one elementary school teacher as she engaged in teacher-as-researcher methodology in both urban and suburban settings. Re-visiting a collection of teacher journals, transcribed audiotapes, student work samples, parent communications, and artifacts in teacher and student portfolios identifies multiple outcomes of this reflective and reflexive professional stance. The case study documents how teacher-as-researcher engagements provided the framework for an elementary teacher to begin to explore science inquiry within an elementary school setting. This autobiographical tale documents how teacher-as-researcher practices enabled students, parents, and educators to become co-learners, co-teachers, and co-researchers in science education and the science of education.     

Learning to teach science as inquiry in the rough and tumble of practice

This study examined the knowledge, beliefs and efforts of five prospective teachers to enact teaching science as inquiry, over the course of a one‐year high school fieldwork experience. Data sources included interviews, field notes, and artifacts, as these prospective teachers engaged in learning how to teach science. Research questions included 1) What were these prospective teachers' beliefs of teaching science? 2) To what extent did these prospective teachers articulate understandings of teaching science as inquiry? 3) In what ways, if any, did these prospective teachers endeavor to teach science as inquiry in their classrooms? 4) In what ways did the mentor teachers' views of teaching science appear to support or constrain these prospective teachers' intentions and abilities to teach science as inquiry? Despite support from a professional development school setting, the Interns' teaching strategies represented an entire spectrum of practice—from traditional, lecture‐driven lessons, to innovative, open, full‐inquiry projects. Evidence suggests one of the critical factors influencing a prospective teacher's intentions and abilities to teach science as inquiry, is the teacher's complex set of personal beliefs about teaching and of science. This paper explores the methodological issues in examining teachers' beliefs and knowledge in actual classroom practice. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 613–642, 2007.