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1.
The purpose of this qualitative interpretive research study was to examine high school students’ written scientific explanations
during biology laboratory investigations. Specifically, we characterized the types of epistemologies and forms of reasoning
involved in students’ scientific explanations and students’ perceptions of scientific explanations. Sixteen students from
a rural high school in the Southeastern United States were the participants of this research study. The data consisted of
students’ laboratory reports and individual interviews. The results indicated that students’ explanations were primarily based
on first-hand knowledge gained in the science laboratories and mostly representing procedural recounts. Most students did
not give explanations based on a theory or a principle and did not use deductive reasoning in their explanations. The students
had difficulties explaining phenomena that involved intricate cause–effect relationships. Students perceived scientific explanation
as the final step of a scientific inquiry and as an account of what happened in the inquiry process, and held a constructivist–empiricist
view of scientific explanations. Our results imply the need for more explicit guidance to help students construct better scientific
explanations and explicit teaching of the explanatory genre with particular focus on theoretical and causal explanations. 相似文献
2.
Reuven Babai Tali Brecher Ruth Stavy Dina Tirosh 《International Journal of Science and Mathematics Education》2006,4(4):627-639
One theoretical framework which addresses students’ conceptions and reasoning processes in mathematics and science education is the intuitive rules theory. According to this theory, students’ reasoning is affected by intuitive rules when they solve a wide variety of conceptually non-related mathematical and scientific tasks that share some common external features. In this paper, we explore the cognitive processes related to the intuitive rule more A–more B and discuss issues related to overcoming its interference. We focused on the context of probability using a computerized “Probability Reasoning – Reaction Time Test.” We compared the accuracy and reaction times of responses that are in line with this intuitive rule to those that are counter-intuitive among high-school students. We also studied the effect of the level of mathematics instruction on participants’ responses. The results indicate that correct responses in line with the intuitive rule are more accurate and shorter than correct, counter-intuitive ones. Regarding the level of mathematics instruction, the only significant difference was in the percentage of correct responses to the counter-intuitive condition. Students with a high level of mathematics instruction had significantly more correct responses. These findings could contribute to designing innovative ways of assisting students in overcoming the interference of the intuitive rules. 相似文献
3.
Daniel L. Dickerson John E. Penick Karen R. Dawkins Meta Van Sickle 《Journal of Science Teacher Education》2007,18(1):45-61
Although clean, potable groundwater constitutes one of our most valuable resources, few students or science educators hold
complete and appropriate understandings regarding the concept. Recent studies that focus on secondary students’ and preservice
science teachers’ understandings of groundwater found little difference between the groups’ conceptualizations of subsurface
hydrology. This article discusses possible reasons for the apparent lack of appropriate understanding regarding the complex
concept of groundwater. Specifically, we concentrate on the lack of emphasis concerning groundwater content in standards documents,
the need for increased attention to students’ spatial reasoning abilities, inadequate formal instruction for science teachers
concerning groundwater, and difficulty in designing appropriate assessment of groundwater concepts. We conclude by offering
suggestions for enhancing the teaching and learning of groundwater. 相似文献
4.
Sri Rahayu A. L. Chandrasegaran David F. Treagust Masakazu Kita Suhadi Ibnu 《International Journal of Science and Mathematics Education》2011,9(6):1439-1458
This study was a mixed quantitative–qualitative research to evaluate the efficacy of a designed student-centred instructional
(DSCI) program for teaching about acids and bases. The teaching innovation was designed based on constructivist, hands-on
inquiry and context-based approaches and implemented in seven 45-min lessons with a class of 36 grade 11 students (experimental
group) from a public senior high school in Indonesia. Another class of 38 students (comparison group) from the same school
was instructed using a traditional teacher-centred approach. Data were obtained using a (1) 12-item achievement test on acids
and bases that was administered to both groups as a pretest and a posttest, (2) self-evaluation 13-item questionnaire on students’
perceptions of their competence and confidence in carrying out the inquiry activities that was administered to the experimental
group and (3) 3-item open-ended questionnaire on students’ perceptions of the instructional process using the DSCI that was
administered to the experimental group. The results of the study showed that the teaching innovation was effective in improving
students’ understanding of acid–base concepts with significant difference between the two groups on the posttest mean scores.
Moreover, the effectiveness of the innovation was supported by an increase in students’ interest in learning science as indicated
by their (1) positive perceptions of their engagement and competence in doing inquiry activities, (2) positive perceptions
of the learning environment and (3) positive outcome expectations. The findings have implications for chemistry teaching in
any institution with similar achieving students as well as for the professional development of teachers. 相似文献
5.
Markus Nivala Roger S?lj? Hans Rystedt Pauliina Kronqvist Erno Lehtinen 《Instructional Science》2012,40(5):799-811
New representational technologies, such as virtual microscopy, create new affordances for medical education. In the article, a study on the following two issues is reported: (a) How does collaborative use of virtual microscopy shape students’ engagement with and learning from virtual slides of tissue specimen? (b) How do visual and conceptual cues scaffold students’ reasoning? Fifteen pairs of medical students participated in two sessions in which the students used a virtual microscope as a diagnostic tool in the context of learning pathology. The slides provided the students with varying levels of visual and conceptual cueing. The sessions were videotaped, and the students’ reasoning while using the microscope was analysed. The students’ written answers were analysed in terms of the findings they made and the diagnoses suggested. At a general level, the results show that students engage actively in this kind of virtually-mediated environment. The visual and/or conceptual cues improve students’ performance, and guide the students’ perception and reasoning in a manner that is productive from the point of view of learning to make clinically relevant observations. Scaffolding students’ reasoning process through cues furthermore assists the students in avoiding the most obvious pitfalls such as overlooking critical areas of a specimen. Overall, visual and conceptual cues improve students’ reasoning in perceptual and cognitive terms, while still allowing space for the making of “relevant mistakes” that may further the students’ diagnostic skills. 相似文献
6.
Mehmet Aydeniz Kristen Baksa Jane Skinner 《Journal of Science Education and Technology》2011,20(4):403-421
The purpose of this study was to understand the impact of an apprenticeship program on high school students’ understanding
of the nature of scientific inquiry. Data related to seventeen students’ understanding of science and scientific inquiry were
collected through open-ended questionnaires. Findings suggest that although engagement in authentic scientific research helped
the participants to develop competency in experimentation methods it had limited impact on participants’ learning of the implicit
aspects of scientific inquiry and NOS. Discussion focuses on the importance of making the implicit assumptions of science
explicit to the students in such authentic scientific inquiry settings through structured curriculum. 相似文献
7.
Matthew J. Mayhew Tricia A. Seifert Ernest T. Pascarella Thomas F. Nelson Laird Charles F. Blaich 《Research in higher education》2012,53(1):26-46
The purpose of this paper was to determine the effects of deep approaches to learning on the moral reasoning development of
1,457 first-year students across 19 institutions. Results showed a modest positive relationship between our measures of deep
approaches to learning and moral reasoning at the end of the first year of college even after controlling for precollege moral
reasoning. After accounting for a host of demographic and relevant student characteristics and for the natural clustering
of students, we found that the integrative learning subscale, which captures students’ participation in activities designed
to integrate information from varied sources and diverse perspectives, positively affected moral reasoning among first-year
students. Implications for researchers and practitioners are discussed. 相似文献
8.
There is a documented need for more opportunities for teachers to learn about students’ mathematical reasoning. This article
reports on the experiences of a group of elementary and middle school mathematics teachers who participated as interns in
an after-school, classroom-based research project on the development of mathematical ideas involving middle-grade students
from an urban, low-income, minority community in the United States. For 1 year, the teachers observed the students working
on well-defined mathematical investigations that provided a context for the students’ formation of particular mathematical
ideas and different forms of reasoning in several mathematical content strands. The article describes insights into students’
mathematical reasoning that the teachers were able to gain from their observations of the students’ mathematical activity.
The purpose is to show that teachers’ observations of students’ mathematical activity in research sessions on students’ development
of mathematical ideas can provide opportunities for teachers to learn about students’ mathematical reasoning. 相似文献
9.
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11.
This paper offers a typology of forms and uses of abduction that can be exploited to better analyze abduction in proving processes.
Based on the work of Peirce and Eco, we describe different kinds of abductions that occur in students’ mathematical activity
and extend Toulmin’s model of an argument as a methodological tool to describe students’ reasoning and to classify the different
kinds of abduction. We then use this tool to analyze case studies of students’ abductions and to identify cognitive difficulties
students encounter. We conclude that some types of abduction may present obstacles, both in the argumentation when the abduction
occurs and later when the proof is constructed. 相似文献
12.
13.
?se Hansson 《Educational Studies in Mathematics》2012,81(1):103-125
In the multilingual mathematics classroom, the assignment for teachers to scaffold students by means of instruction and guidance in order to facilitate language progress and learning for all is often emphasized. In Sweden, where mathematics education is characterized by a low level of teacher responsibility for students’ performance, this responsibility is in part passed on to students. However, research investigating the complexity of relations between mathematics teaching and learning in multilingual classrooms, as well as effect studies of mathematics teaching, often take the existence of teachers’ responsibility for offering specific content activities for granted. This study investigates the relations between different aspects of responsibility in mathematics teaching and students’ performance in the multilingual mathematics classroom. The relationship between different group compositions and how the responsibility is expressed is also investigated. Multilevel structural equation models using TIMSS 2003 data identified a substantial positive influence on mathematics achievement of teachers taking responsibility for students’ learning processes by organizing and offering a learning environment where the teacher actively and openly supports the students in their mathematics learning, and where the students also are active and learn mathematics themselves. A correlation was also revealed between group composition, in terms of students’ social and linguistic background, and how mathematics teaching was performed. This relationship indicates pedagogical segregation in Swedish mathematics education by teachers taking less responsibility for students’ learning processes in classes with a high proportion of students born abroad or a high proportion of students with low socio-economic status. 相似文献
14.
This paper reports a teaching experiment in which two students engaged in tasks that challenged them to describe a final state
for a variety of infinite iterative processes. The results from the study indicate that the students used multiple reasoning
strategies for addressing these tasks. Refinements in the students’ reasoning occurred as students constructed relationships
between the problems they were solving and problems they had solved previously, applying some of the reasoning strategies
that they used for one problem to make sense of or solve another problem. We discuss how these findings relate to the existing
body of research on infinite iterative processes. 相似文献
15.
Roberta Hunter 《Journal of Mathematics Teacher Education》2010,13(5):397-409
In the current shifts in mathematics classrooms, teachers are challenged to use effective pedagogy to develop inquiry communities
in which all participants are offered opportunities to engage in the reasoning discourse of proficient mathematical practices.
The challenge for teachers is to know how to implement these pedagogical changes. This article outlines how a teacher and
researcher worked together in a collaborative partnership using a purposely designed communication and participation framework
as a tool to scaffold development of collective reasoning in the inquiry community. The findings illustrate the interconnections
between the teacher’s beliefs, past experiences, and current, and future expectations for her diverse students. Explanations
are provided of how different, often conflicting, voices emerged including one that drew on the teacher’s cultural knowledge.
This provided many learning opportunities for the researcher as the teacher developed her students’ voices in culturally appropriate
ways. 相似文献
16.
The purpose of the present study was to test the hypothesis that student’s abductive reasoning skills play an important role
in the generation of hypotheses on pendulum motion tasks. To test the hypothesis, a hypothesis-generating test on pendulum
motion, and a prior-belief test about pendulum motion were developed and administered to a sample of 5th grade children. A
significant number of subjects who have prior belief about the length to alter pendulum motion failed to apply their prior
belief to generate a hypothesis on a swing task. These results suggest that students’ failure in hypothesis generation was
related to abductive reasoning ability, rather than simple lack of prior belief. This study, then, supports the notion that
abductive reasoning ability beyond prior belief plays an important role in the process of hypothesis generation. This study
suggests that science education should provide teaching about abductive reasoning as well as scientific declarative knowledge
for developing children’s hypothesis-generation skills. 相似文献
17.
The Israeli high school biology curriculum comprises the Biomind program, in which students are engaged in an open inquiry
learning process. The dynamic features of open inquiry often pose challenges to teachers in implementing the Biomind program.
The current qualitative research shows that facilitating students in a dynamic open inquiry process is multidimensional. Teaching
practices cover a wide range of methods, from structured inquiry through guided inquiry to open inquiry. An individual teacher’s
profile can be elucidated on the basis of this spectrum. In addition, we realised that teachers often encounter several difficulties
in implementing open dynamic inquiry: A dearth of teachers’ scientific knowledge, students’ lack of scientific knowledge and
skills, and a restrictive time-frame. This study suggests several areas which should be considered while implementing an on
going professional development support for teachers who are engaged in open inquiry teaching. 相似文献
18.
Anderson Hassell Norton Andrea McCloskey 《Journal of Mathematics Teacher Education》2008,11(4):285-305
The challenge that we address concerns teachers’ shifts toward student-centered instruction. We report on a yearlong professional
development study in which two United States elementary school teachers engaged in a teaching experiment, as described by
Steffe and Thompson (in: Lesh and Kelly (eds) Research on design in mathematics and science education, 2000). The teaching
experiment involved close mathematical interactions with a pair of students after school, in the context of solving fractions
tasks. By conducting a teaching experiment, we anticipated that each teacher would have more opportunity to develop insight
into students’ mathematics. We also anticipated that these insights would influence the teachers’ classroom practice, even
without explicit support for such a shift. Indeed, the teachers found that they began asking more probing questions of their
students and spending more time listening to students’ explanations, but shifts to classroom practice were limited by constraining
factors such an inflexible curriculum. 相似文献
19.
Gultekin Cakmakci Hatice Sevindik Meryem Pektas Asli Uysal Fatma Kole Gamze Kavak 《Research in Science Education》2012,42(3):469-489
This paper reports on an attempt to investigate Turkish primary school students’ interest in science by using their self-generated
questions. We investigated students’ interest in science by analyzing 1704 self-generated science-related questions. Among
them, 826 questions were submitted to a popular science magazine called Science and Children. Such a self-selected sample
may represent a group of students who have a higher level of motivation to seek sources of information outside their formal
education and have more access to resources than the students of low social classes. To overcome this problem, 739 students
were asked to write a question that they wanted to learn from a scientist and as a result 878 questions were gathered. Those
students were selected from 13 different schools at 9 cities in Turkey. These schools were selected to represent a mixture
of socioeconomic areas and also to cover different students’ profile. Students’ questions were classified into two main categories:
the field of interest and the cognitive level of the question. The results point to the popularity of biology, astrophysics,
nature of scientific inquiry, technology and physics over other science areas, as well as indicating a difference in interest
according to gender, grade level and the setting in which the questions were asked. However, our study suggests that only
considering questions submitted to informal learning environments, such as popular science magazines or Ask-A-Scientist Internet
sites has limitations and deficiencies. Other methodologies of data collection also need to be considered in designing teaching
and school science curriculum to meet students’ needs and interest. The findings from our study tend to challenge existing
thinking from other studies. Our results show that self-generated questions asked in an informal and a formal setting have
different patterns. Some aspects of students’ self-generated questions and their implications for policy, science curriculum
reform and teaching are discussed in this paper. 相似文献
20.
Although out-of-class communication enhances students’ learning experience, students’ use of office hours has been limited.
As the learning infrastructures of the social sciences and humanities have undergone a range of changes since the diffusion
of digital networks, new opportunities emerge to increase out-of-class communication. Hence, it is important to investigate
the role of cyberinfrastructures as valuable alternatives or supplements to existing infrastructures in the learning process.
This paper proposes that virtual office hours can be a form of cyberinfrastructure that provides new possibilities for student–faculty
interaction. We examine students’ perceptions of instant messaging as a tool for offering virtual office hours and enhancing
student–faculty interaction. Students report that instant messaging is a useful tool for virtual office hours because of its
convenience, interactivity, and ease of use. While students only made limited use of it when it was actually offered as an
alternative to regular office hours, it represents an important new avenue for interaction. We outline reasons for students’
limited use of instant messaging for virtual office hours and discuss a series of barriers and potential solutions. 相似文献