The relationship between biology teachers’ understanding of the nature of science and the understanding and acceptance of the theory of evolution

ABSTRACT

Despite the importance of the theory of evolution (TE) to scientific knowledge, a number of misconceptions continue to be found among biology teachers. In this context, the first objective of this study was to identify the impact of professional development programme (PDP) on teachers’ understanding of nature of science (NOS) and evolution and on the acceptance of this theory. Its second objective was to study the relationship among these variables. Three instruments were used to quantify these variables: the Views of the Nature of Science Version D (VNOS D+), the Assessing Contextual Reasoning about Natural Selection (ACORN), and the Measure of Acceptance of Theory of Evolution (MATE). The results indicate that the PDP had a positive impact on teachers, significantly improving their understanding of the NOS and natural selection, as well as their acceptance of the TE. Furthermore, a positive correlation between the understanding of the NOS obtained by teachers in the first part of the PDP and the understanding and acceptance of evolution that these teachers showed at the end of the programme was determined. However, no relationship between an understanding of the NOS and gains in the understanding and acceptance of evolution was found.     

Application of a Discourse Approach to Speaking in Teaching of Conversation

In this essay the author attempts to put forward an innovative teaching mode in the course of ＂English Conversation＂ for sophomore English majors in China. In this mode an authentic conversation is used as the teaching material and the theoretic aspects of Conversation Analysis （CA） are applied for the teaching of the course. This mode can be carried out by English teachers as a teaching experiment and then the teaching effects can be measured through comparison with the traditional teaching mode in which no authentic teaching materials are used.     

From the Horse's Mouth: Why scientists’ views are crucial to nature of science understanding

Written in response to criticism of our work by Fouad Abd-El-Khalick, this position paper reaffirms and reinforces our position about the need to broaden and enrich the scope of nature of science (NOS) oriented curricula by exposing students to the voices of practising scientists. While Abd-El-Khalick's motivation for promoting the so-called consensus view of NOS is rooted in issues of assessment (or ‘benchmarking', as he calls it), we argue that the major reason for teaching about NOS is its contribution to what Shen calls civic and cultural scientific literacy. We are critical of the consensus view for its philosophical naivety, failure to reflect contemporary scientific practice and potential for confusing students, and we re-state our view that it is important to expose students to a diversity of practice among the sub-disciplines of science. We argue that richer NOS understanding and a more authentic view of scientific practice can be achieved through direct and indirect contact with scientists at the cutting edge of research and development, which we characterise as learning about scientists, learning from scientists and learning with scientists.     

Characterising the development of the understanding of human body systems in high-school biology students – a longitudinal study

ABSTRACT

Science education today has become increasingly focused on research into complex natural, social and technological systems. In this study, we examined the development of high-school biology students’ systems understanding of the human body, in a three-year longitudinal study. The development of the students’ system understanding was evaluated using the Components Mechanisms Phenomena (CMP) framework for conceptual representation. We coded and analysed the repertory grid personal constructs of 67 high-school biology students at 4 points throughout the study. Our data analysis builds on the assumption that systems understanding entails a perception of all the system categories, including structures within the system (its Components), specific processes and interactions at the macro and micro levels (Mechanisms), and the Phenomena that present the macro scale of processes and patterns within a system. Our findings suggest that as the learning process progressed, the systems understanding of our students became more advanced, moving forward within each of the major CMP categories. Moreover, there was an increase in the mechanism complexity presented by the students, manifested by more students describing mechanisms at the molecular level. Thus, the ‘mechanism’ category and the micro level are critical components that enable students to understand system-level phenomena such as homeostasis.     

Testing: Exploring the WISC‐III as a measure of giftedness∗

This study investigated patterns of WISC‐III IQ subtest scores for gifted children. Subtest scatter of WISC‐III scores occurred with greater frequency in a gifted sample than for subjects reported in the test manual's normative sample. Variability from the subtest mean of the gifted was most evident on Similarities, Comprehension, Coding, and Symbol Search. The extent of subtest scatter and its pattern on the WISC‐III was similar to typical patterns of highs and lows found for gifted children on the WISC‐R with one notable exception. There was a marked lack of strength in Block Design, previously seen as a peak subtest for gifted students when assessed with the WISC‐R.     

How can an understanding of cognitive style enable trainee teachers to have a better understanding of differentiation in the classroom?

The relationship between cognitive style and trainee teacher conceptions of differentiation was studied to develop appropriate scaffolding of their learning. 149 trainee teachers enrolled on 1 year postgraduate initial teacher education (ITE) programmes at two UK universities completed the Cognitive Style Index (Allinson and Hayes, Journal of Management Studies, 33(1):119–135, 1996; Hodgkinson and Sadler-Smith, Journal of Occupational and Organisational Psychology, 76(2):243–268, 2003) and a questionnaire exploring their understanding of differentiation, conceptions of learning and learning preferences. A stratified sample of these trainees was also interviewed to assess their understanding and prior knowledge of differentiation and learning styles and how they would plan for these in the classroom. Responses were coded using content analysis procedures. Cognitive style was found to impact on trainees’ conceptions of differentiation; for example, trainees demonstrating higher levels of analysis and intuition had a more developed understanding of differentiation than other cognitive styles. In relation to the findings, the use of a constructivist pedagogical tool: a Personal Learning Styles Pedagogy (Evans and Waring, Zhang & Sternberg (Eds.), Perspectives on the nature of intellectual styles, 2009) is presented to inform the reconceptualisation of ITE programmes. In so doing, the use of this tool addresses key issues raised in recent international policy debates concerning the necessary development of ITE for twenty-first century learner needs.     

Getting to know nature: evaluating the effects of the Get to Know Program on children’s connectedness with nature

People in industrialized countries may be losing their connection with nature. The Get to Know Program (Get to Know) is a multi-faceted program aimed at encouraging direct connection with nature through a variety of activities (observations of wildlife, hiking, creative arts, and special events), specifically among youth. Three studies assessed the effects of three Get to Know program activities on youth’s implicit connectedness with nature (measured using a computer based game). Participants were youth recruited from southern California schools or youth organizations. Participation in the Get to Know Program’s Creative Arts Contest was associated with increased implicit connectedness with nature. However, participation in the Get to Know Natural Treasure Adventure and Virtual Hike did not have an effect on connectedness with nature. Implications of these findings are important for agencies seeking to find effective tools for outreach focused on connecting participants with nature.     

Prospective biology teachers’ understanding of the nature of science through an analysis of the historical case of Semmelweis and childbed fever

Cultural Studies of Science Education - This article presents a qualitative study of the understanding of various epistemic and non-epistemic aspects of the nature of science (NOS), based on...     

Students’ understanding of the general notion of a function of two variables

In this study we analyze students’ understanding of two-variable function; in particular we consider their understanding of domain, possible arbitrary nature of function assignment, uniqueness of function image, and range. We use APOS theory and semiotic representation theory as a theoretical framework to analyze data obtained from interviews with thirteen students who had taken a multivariable calculus course. Results show that few students were able to construct an object conception of function of two variables. Most students showed difficulties finding domains of functions, in particular, when they were restricted to a specific region in the xy plane. They also showed that they had not fully coordinated their R³, set, and function of one variable schemata. We conclude from the analysis that many of the interviewed students’ notion of function can be considered as pre-Bourbaki.     

An international study of the changing nature and role of school curricula: from transmitting content knowledge to developing students’ key competencies

The primary purpose of this study is to investigate how key competencies can be incorporated into school curricula, what relevant instructional methods are needed and what institutional support is required to make school curricula based more on key competencies. For this, the study uses qualitative data from three schools (one each in South Korea, Australia, and New Zealand). The results indicate that a transformative approach, not an additive approach, is required. That is, teachers tend to restructure existing curricula to develop students’ key competencies instead of considering the latter as a new teaching component. In terms of instructional methods, teachers are likely to believe that more engaging and participatory instructional methods would help their students to practice and develop diverse aspects of their competencies. Further, the principal’s efforts to enhance communication and interaction with teachers is crucial to constructing local definitions of key competencies and shared visions for integrating such competencies with school curricula and instruction. The results indicate a need for redirecting the role of school curricula from transmitting content knowledge of academic subjects to developing students’ key competencies.     

Current status and future directions of educational psychology as a discipline∗

A data analysis strategy is proposed to test for aptitude‐by‐treatment interactions (ATIs) when treatments are administered to aggregates (e.g., classrooms or other groups) rather than individuals. The strategy satisfies both the statistician's concern for between‐unit independence and the ATI researcher's concern for focussing on individual, rather than group, characteristics. In addition, the strategy is shown to be logically and computationally straightforward, while at the same time being capable of detecting ATIs in actual research applications.     

Using the multimodal affordances of the interactive whiteboard to support students’ understanding of texts

The purpose of the study reported on here was to explore ways in which the interactive whiteboard (IWB) can support students’ understanding of texts. A Year 3 and a Year 4 primary school class in New South Wales, Australia, is the focus of the research. A qualitative case study was carried out using multimodal analysis focusing on the use of an e‐book displayed via the IWB. The results of the study indicate that the IWB can support students’ understanding of a narrative to prepare them to write a whole‐class response through providing increased access to a range of resources that are multimodal in nature. The way the interactive features of the IWB can facilitate access to multimodal resources to cater for student needs is also discussed.     

How does a context‐based approach influence understanding of key chemical ideas at 16+?

One of the characteristics of curriculum development in recent years has been an increased emphasis on using contexts and applications as a means of developing scientific understanding. Yet relatively little has been done to compare the effects of learning on context‐based approaches to science teaching with more traditional approaches. This study compares the performance on a range of diagnostic questions of pupils following both a context‐based approach and a more traditional approach to high school chemistry. The study shows that there is little difference in levels of understanding, but that there appear to be some benefits associated with a context‐based approach in terms of stimulating pupils’ interest in science.     

Students’ images and their understanding of definitions of the limit of a sequence

There are many studies on the role of images in understanding the concept of limit. However, relatively few studies have been conducted on how students’ understanding of the rigorous definition of limit is influenced by the images of limit that the students have constructed through their previous learning. This study explored how calculus students’ images of the limit of a sequence influence their understanding of definitions of the limit of a sequence. In a series of task-based interviews, students evaluated the propriety of statements describing the convergence of sequences through a specially designed hands-on activity, called the ɛ–strip activity. This paper illustrates how these students’ understanding of definitions of the limit of a sequence was influenced by their images of limits as asymptotes, cluster points, or true limit points. The implications of this study for teaching and learning the concept of limit, as well as on research in mathematics education, are also discussed.     

Connecting students to nature – how intensity of nature experience and student age influence the success of outdoor education programs

Nature connectedness counts as a crucial predictor of pro-environmental behavior. For counteracting today’s environmental issues a successful re-connection of individuals to nature is necessary. Besides the promotion of knowledge transfer the aim of the educational program presented in this study is to connect students to their environment. This research explores the impact of an outdoor environmental education program on primary and secondary school students’ nature connectedness with regard to the extent of their nature experience and participant age. The intervention was implemented in two durations: one-day and five-days. Participants were divided into four subsamples from seven up to 18 years of age. Findings suggest that both intervention types evoke immediate shifts towards a stronger nature connectedness among students (p < .001). Notably, the five-day outdoor education interventions were significantly more effective in sustainably promoting nature connectedness compared to one-day field trips (p < .001). Seven to nine year old students performed the strongest shifts towards nature. The value of short-term and residential outdoor environmental education interventions is discussed.     

Exploring the use of concept chains to structure teacher trainees’ understanding of science

This paper reports on a paper and pencil concept‐sorting strategy that enables trainee teachers to restructure their knowledge in any one domain of science. It is used as a self‐study tool, mainly to enable them to break down and understand the progression of concepts beyond the level at which they have to teach. The strategy involves listing key ideas in an increasingly complex and inclusive fashion such that a ‘chain’ is developed where the initial statements are simple and the final ones more complex. Evaluation of the strategy with trainees over a five‐year period revealed promising potential for the strategy as a self‐study tool, as well as an audit tool, enabling tutors to more easily identify misconceptions. There was some evidence that trainees found the strategy useful in preparing themselves to teach in the classroom, possibly by enabling meaningful learning to take place according to the Ausubel–Novak–Gowin theory.