The impact of scienceware and foundations on students' attitudes towards science and science classes

In this paper, we describe changes in students' ideas about science classes, attitudes about science, and motivations for studying science, in a classroom designed to support projectbased science learing. Using a survey designed to provide a measure of students' attitudes towards science classes and science, we have compared students enrolled in a traditional high school biology course, with students enrolled in an integrated, project-based science course called Foundations I. Survey responses were analyzed to look at differences between and within two groups of students over the course of one school year. In general, the results of this study suggest that providing students with opportunities to collect and analyze their own data in science classes results in a change in students' ideas about science classrooms. Foundations I students' increased tendency to agree with statements about using information, drawing conclusions, and thinking about problems, implies a change in their understanding of what it means to do science in school. These students, in contrast to students in the traditional Biology course, no longer describe their science experience as one of memorization, textbook reading, and test taking. Instead they see science class as a place in which they can collect data, draw conclusions, and formulate and solve problems.     

A Textbook Case of the Nature of Science: Laws and Theories in the Science of Biology

The two concepts law and theory are among the most important elements of the nature of science. They represent both the tools and products of science itself. Unfortunately, the variable meanings and use of these terms in general discourse and in other school disciplines results in much confusion with respect to their proper application in a science context. The project included the design of a six-part model definition for law and theory based on a review of the literature of the philosophy of science with special reference to biology. These model definitions were then compared with those provided in a range of U.S. secondary school biology textbooks. The majority of all current major U.S. secondary school biology texts were reviewed and analyzed with respect to how the concepts of law and theory were defined and applied, in an attempt to determine whether students and teachers using such texts would gain an accurate impression of these terms and the distinction between them. This study focuses on biology instruction since a life science course is completed as a graduation requirement by virtually all U.S. high school students and as such serves as a widely shared educational experience across the nation. The term law is rarely defined in any text but various laws such as those found in genetics are frequently included as examples. The term theory is frequently defined but with a wide range of completeness of the definitions. Only rarely are theories in biology included as examples.     

The Indian Association for the Cultivation of Science: A Tortuous Tryst with Modern Science

The Indian Association for the Cultivation of Science (IACS) founded by Mahendra Lal Sircar in Calcutta in 1876 was the first large-scale indigenous enterprise in colonial India for the propagation of modern science. The efforts towards the formation of the IACS were marked by a range of ideas and positions which reflected mainstream elite Indian attitudes to western science as also the many paradoxes that the colonial situation imposed on the whole enterprise. The first exposures of the Indian elite to western education had evoked an admiration for modern science, its values, and its infinite possibilities. But the admiration so generated could not run on a momentum of its own because of the limitations of the colonial education system itself. The appreciation of modern science also brought about a soul-searching as to why a civilization with a hoary tradition of science had stagnated. This, in turn, led to vigorous socio-cultural self-criticism aimed at ending what was perceived to be long slumber and degeneration. Science itself was seen as a force for such liberation and the alien colonial government as its chief facilitator. The latter was not too eager to promote science at large. Hence the need for an indigenous initiative. However, the plain existential realities of colonialism dictated that little could be achieved without the support of the government. With all its paradoxes and ironies, the IACS project was yet a grand endeavour, forming a lasting part of the Indian scientific landscape. In fact, given its peculiar circumstances, it would have been very unreal without its paradoxes.     

Science-specialist Student-teachers Consider Promoting Technological Design Projects: Contributions of Multi-media Case Methods

In school science, students often experience simplistic representations of knowledge-building practices in science and technology – which, in reality, are complex, unpredictable and theory-limited. While there are a great variety of reasons (many of which are beyond teachers' direct control), this occurs partly because teachers of science generally have not had such realistic experiences. While student-teachers can develop this kind of meta-scientific literacy in university-based science teacher education programmes, this depends on the extent to which activities are legitimised through close associations with authentic school contexts. In this paper, we report effects on science-specialist student-teachers' conceptions about science and technology, and corresponding priorities for school science, after interacting with a case documentary that depicted students collaborating in development and evaluation of pneumatic-controlled robotic arms. Data, including video footage of student-teachers' interactions with cases and audio recordings of interviews with them and their teacher, indicated that many student-teachers developed more naturalistic perspectives on knowledge development in science and technology and corresponding pedagogical priorities. At the same time, most also recommended an apprenticeship for students, gradually moving them from unrealistic (e.g., following a linear model for technological design) to more realistic (e.g., accommodating flexibility in design, while pointing out such limits to creativity as techno-determinism) problem solving contexts.     

Integrating Western and Aboriginal Sciences: Cross-Cultural Science Teaching

The article addresses issues of social power and privilege experienced by Aboriginal students in science classrooms. First, I present a rationale for a cross-cultural science education dedicated to all students making personal meaning out of their science classrooms. Then I describe a practical research and development project, Rekindling Traditions: Cross-Cultural Science & Technology Units, that modestly illustrates cross-cultural science teaching for years 6–11, in which Western and Aboriginal sciences are integrated. This integration is discussed in terms of the Rekindling Traditions units, including the assessment of students.     

Collaborating in the Evolution of a Middle School Science Learning Environment

This study describes a collaborative study involving a teacher and university researcher using learning environment research to transform a middle school science learning environment. Habermas' idea of knowledge constitutive interests (technical, practical, and emancipatory) is used as a perspective to make sense of the learning environment. Student perceptions of science and the nature of science were explored. Classroom observations and student interviews were the primary data sources. Students perceived science as primarily a set of facts to be learned and did not view it as an inquiry method or a social process. Despite the characterization of the course by the teacher and students as hands-on and experimental, technical interests were prevalent. Through negotiation, a plan of action was outlined for recreating the learning environment to make it more practical and emancipatory, as well as more consistent with contemporary perspectives on the nature of science.     

“Science is dead. We have killed it,you and I”—How attacking the presuppositional structures of our scientific age can doom the interrogation of nature

This paper is an attempt to characterize what 20 years of teaching history and philosophy of science to science teachers have suggested to me. The most important thing which I have found is that almost all of my students have the samestandard picture of science. Karl Pearson'sThe Grammar of Science gives the main outlines of this picture. This view emphasizes the centrality of method over particular results and the purely empirical nature of observation and of generalization derived from empirical induction. My paper shows that in giving modern history and philosophy of science to a generation of students, I have sown the seeds of scepticism and disbelief in a fashion parallel to that in which the introduction of science as a sceptical methodvis-à-vis theology undermined the belief in God. Thus I suggest that a danger we may be as yet unaware of is that science as an enterprise can be undermined and so lost, unless we guard against a too facile scepticism—a scepticism quite different from a healthy wait and see or a show me the colour of your argument.     

Student Self-Assessment in HOCS Science Examinations: Is There a Problem?

A specially-designed self-assessment questionnaire (SAQHOCS), containing higher-order cognitive skills (HOCS)-type questions, was administered to 71 biology majors, enrolled in a four-year college program. The gap between students' self-assessment marking, and that of their HOCS-biased teachers (the authors), is accounted for by the prevailing LOCS-orientation and the testing culture—a total separation between testing and learning—in contemporary science teaching. The majority of the students in the study evaluated themselves as capable of self-assessment, and felt reasonably confident in doing so. They were quite reserved as far as the applicability of the self-assessment method to nonalgorithmic (correct/incorrect) questions is concerned. The results of this study suggest that the potential for student self-assessment within college science teaching and learning exists. However, still a great purposed effort in HOCS-oriented teaching and learning is required in order for the student self-assessment practice to become a routine integral component of HOCS science examinations.     

A look at student cheating in college science classes

To gain an appreciation of the collusion rate of college students in science classes, over three hundred undergraduates from western Pennsylvania were sampled for their attitudes toward different forms of cheating. The science students were sampled from several different divisions within the university. The survey used in the study was developed by Baird (1980) and holds a reliability coefficient of 89%. The results of the survey indicate that eighty three percent of the respondents had cheated in science sometime in their lives. The vast majority (86%) of the pupils had shared homework answers with classmates and most (81%) had told little lies to teachers or administrators to avoid getting in trouble. Fewer, but still the majority (75%), of the students admitted to have copied phrases directly out of glossaries, encyclopedias, journals or reference books turning it in as their own work. Most students (80%) had also used crib notes or written science terms on their shoes, wrists or other parts of their body to get by minor quizzes at times in their biology course. Over three quarters of the students admitted to cheating on large exams and major projects. When the results of the study are compared to students surveyed with the same instrument a decade ago, it is revealed that the cheating among students is growing. Alarmingly, when the results of the 1993 study were compared to the one in 1980, it was discovered that student collusion had increased in all of the categories in the questionnaire.     

Implementing “real science” through microcomputers and telecommunications in project-based elementary classrooms

This is a study of an ongoing collaborative project in which science education faculty and upper elementary school teachers investigate the potential of a project-based, technologyrich, environmentally oriented approach to science education in an urban school serving a racially diverse population. Major conclusions based on the experience of participants in this study include: (1) teachers describe their instructional roles in terms highly consistent with student-centered, project-based, experiential learning; (2) teachers believe that what makes science real for students is the feeling that they are working on a truly current problem that is also being investigated by others outside their classroom. This is achieved by KidsNet, a microcomputer- and telecommunications-mediated curriculum, in a way that would not be possible without this technology; (3) teachers describe the actual and possible role of computer technology in terms which, while insightful and generally positive, are not clearly related to its flexible use in project-based learning; and (4) while teachers recognize meaningful connections between off-line science activities and the use of computer and telecommunications technologies, their students often do not.An earlier version of this paper was presented at the annual meeting of the American Educational Research Association, April 16, 1993, Atlanta, Georgia.This work was partially supported by a Higher Education Grant from the Dwight D. Eisenhower Mathematics and Science Education Improvement Program.     

Between Local Culture and School Science: The Case of Provincial and Urban Students from Eastern Colombia

A lack of congruency between the teaching and learning of science and the student’s personal worlds has long been recognised by the international science education community as an issue deserving space in the research agenda. The purpose of this study was to explore the diversity of student reactions when subcultures such as family, community peers, and personal worldviews are considered along side the subculture of school science. Two-hundred and fifty students from urban and provincial schools in the northeastern region of Colombia (South America) participated. From this group, 18 students were interviewed. It was observed that students adopt a compartmentalisation of knowledge that is evident as both an avoiding strategy in the classroom and as a mechanism to differentiate between the natural world of their everyday situations and the one portrayed by a Westernised science instruction in the classroom. The findings reflect how multiple worldviews correlate with student frameworks as implanted by school science.

A possible “orality” for science?

The paper attempts to look at how the present objective and detached discourse of science, a specialized product of the literate tradition, tends to negatively influence learning among children, especially those belonging to a signficantly oral culture. It calls for a fundamental redefinition of scientific discourse and urges school science to review its own communicability, to address the disparate linguistic and conceptual structures brought to the learning situtation by students of diverse cultures, and to allow for a smooth and unoppressive transition to the standardized register.     

Conceptual knowledge in talk and text: What does it take to understand a science question?

What is referred to as conceptual knowledge is one of the mostimportant deliverables of modern schooling. Following the dominance of cognitive paradigmsin psychological research, conceptual knowledge is generally construed assomething that lies behind or under performance in concrete social activities. In the presentstudy, students' responses to questions, supposedly tapping conceptual knowledge,have been studied as parts of concrete communicative practices. Our focus has been onthe differences between talk and text. The most frequent approach for generatinginsight into conceptual knowledge is by means of written tests. However, the very mannerin which people handle the demands of this particular form of mediation is seldomattended to. This problem has been studied by means of two items taken from theinternational comparison of knowledge and achievement in mathematics and science, TIMSS.The results reveal that it is highly doubtful if the items test knowledge of scienceconcepts to any significant extent. In both instances, the difficulties students have, asrevealed in the interview setting, seem to be grounded in problems in understanding somedetails in the written questions. These difficulties are generally easily resolved in aninteractive setting. It is argued that the low performance on these items can to a largeextent be accounted for by the abstract and highly demanding form of communication that iswritten language.     

Constructivist Science Teaching: Intellectual and Strategic Teaching Acts

This paper attempts to provide some productive starting points for discussion in the context of science teaching. Embedded in the current practice of methodologies such as messing about, hands-on, minds-on activities, science-technology-society related approaches, and inquiry-based learning, is often a sense of confusion and frustration. Such current methodologies in elementary science teaching are founded on constructivist learning theory. This paper attempts to pinpoint possible ways in which this child-centered, interactive learning theory can lead to confusion for students and teachers alike. It attempts to distinguish the necessary criteria for successful science teaching from much of today's practice in the elementary school science class. It does not attempt to draw conclusions on the reasons behind some of the practices.     

How Do Beginning Primary School Teachers Cope with Science? Toward an Understanding of Science Teaching Practice

This study emerged from a consideration of how some beginning primary school teachers cope when faced with teaching science. Primary teachers typically lack science content knowledge and therefore the science pedagogical content knowledge (PCK) that enables them to teach science. Aspects of a group of beginning primary school teachers' science teaching practices were consequently examined in order to understand better the basis of their practice. In particular, science PCK and its relationship to activities that work were considered, illuminated by findings about activities that work from a separate study with practicing teachers. The main assertion arising from this study is that activities that work have a close relationship with science PCK. A number of implications for primary science curriculum emerge from this assertion, such as considerations for preservice teacher education science courses and the nature of the primary science curriculum.     

Designing and using open-ended software to promote conceptual change

We describe a recent project that explored the use of interactive computer software for teaching Einstein's special theory of relativity to secondary school studients. Our approach couples results from recent cognitive science research with modern techniques for using computers to help students visualize and experiment with otherwise inaccessible phenomena. One the products of this research is RelLab, a computer-based exploratory tool for constructing gedanken, or thought experiments involving physical systems in relative motion. We will describe our efforts in designing and testing this software for affecting change in students' concepts of space and time. Relativity is ideally suited for such a study because understanding it requires a radical reconceptualization of these quantities.Advanced Physics from an Elementary Viewpoint, NSF grant MDR-9016417.     

An Investigation of Science Teaching Practices in Indonesian Rural Secondary Schools

This study reports on teaching practices in science classrooms of Indonesian lower secondary schools in rural areas. Using six schools from three districts in the province of Kalimantan Selatan as the sample, this study found that most teaching practices in science classrooms in rural schools were teacher-centred with students copying notes. However, the study also found unique teaching practices of an exemplary science teacher whose teaching style can be described as both student-centred and teacher-centred, with students encouraged to be active learners. Four features of exemplary teaching practices were identified: The teacher managed the classroom effectively; used a variety of questioning techniques; employed various teaching approaches instead of traditional methods; and created a favourable learning environment. Data from classroom observations, interviews with teachers, and students responses to a questionnaire were used to compare the exemplary teacher and his colleagues. This study identified internal factors that may affect teaching practices such as a teachers content knowledge and beliefs about teaching. Compared to the other teachers, the exemplary teacher possessed more content knowledge and had a relatively stronger belief in his ability to teach.     

Authentic science experiences as a vehicle to change students’ orientations toward science and scientific career choices: Learning from the path followed by Brad

Bringing a greater number of students into science is one of, if not the most fundamental goals of science education for all, especially for heretofore-neglected groups of society such as women and Aboriginal students. Providing students with opportunities to experience how science really is enacted—i.e., authentic science—has been advocated as an important means to allow students to know and learn about science. The purpose of this paper is to problematize how “authentic” science experiences may mediate students’ orientations towards science and scientific career choices. Based on a larger ethnographic study, we present the case of an Aboriginal student who engaged in a scientific internship program. We draw on cultural–historical activity theory to understand the intersection between science as practice and the mundane practices in which students participate as part of their daily lives. Following Brad, we articulate our understanding of the ways in which he hybridized the various mundane and scientific practices that intersected in and through his participation and by which he realized his cultural identity as an Aboriginal. Mediated by this hybridization, we observe changes in his orientation towards science and his career choices. We use this case study to revisit methodological implications for understanding the role of “authentic science experiences” in science education.

Science education II: Scientific literacy and the Karplus taxonomy

In this essay we explore the role played by the conceptual structure of science in scientific literacy. It is shown that the taxonomy of scientific concepts elucidated by Karplus is a basic structural characteristic of science, and provides a natural means forengaging, as distinct from merely learning, scientific content. Special attention is given to the idea scientific model as being fundamental to the discipline and therefore essential to scientific literacy. The relationship between scientific models and common misconceptions is developed.Based on the second of two talks given at the Paedagogische Hochschule, Ludwigsburg, Germany, in November 1988.