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1.
Self assessment is applied to develop students' confidence in their problem solving ability in the context of a four‐course sequence in Chemical Engineering, called the McMaster Problem Solving (MPS) programme. The issues in using self assessment are explored and then illustrated in the context of the MPS programme. The criteria for assessment are public, explicit and related to the learning objectives for each of 35 separate skills, topics or Units that comprise the programme. The criteria are primarily generated by faculty, but the students can generate their own to obtain higher levels of accomplishment. Students use journal writing as the main method of providing evidence, satisfying the criteria and demonstrating achievement. The students rationalise their self assessment in an interview with the instructor. The self assessment counts for between 10 and 27% of their grade. The students receive 6 hours of training on self assessment early in the course. Self assessment is applied to all of the subsequent activities in the MPS programme.

Comparisons are given between students' summative assessments and their performance on a written final examination and their overall mark in the course. The average deviation is usually less than 10%.

The approaches taken in this MPS programme are compared with those of others. Suggestions for development and improvement are noted.  相似文献   


2.
This paper reports how individual students respond to a nine‐week course in plant anatomy using two teaching techniques: self‐instruction and group interaction.

Students vary widely in their responses to teaching by these techniques. Over the four years of the study (1975–78) four major patterns of response have emerged. These are described as learning profiles. The profiles are composed from curves depicting the attainment of individual students, measured in seven weekly assessment tests given during group sessions. The assessment tests measured performance in four capacities, based on Bloom's criteria, viz. recall of knowledge, comprehension, application and short‐chain problem solving. Learning curves for each of these four capacities were obtained for each individual student. Other variables, e.g. general ability, age, sex, anxiety, motivation, time spent etc. were also determined for each student.

The purpose of the course is to train students to solve problems in plant anatomy. Although strategies for solving long‐chain problems were not practised in groups, the component skills used in their solution were practised in the weekly test items.

From the profile types — i.e. the patterns of individual response to the teaching ‐ it was possible to make some prediction about performance in the final examination, although this examination was predominantly one to test capacity to solve long‐chain, multi‐step problems.  相似文献   


3.
Educators know that variables beyond abilities affect students’ performance in school and their interactions with their teachers. Thinking styles are such a variable. Thinking styles are preferred ways of thinking. They are not abilities but rather preferred ways of expressing these abilities. Both students and teachers vary in thinking styles, and in systematic ways. For example, teachers tend to match the stylistic pattern of the school, and students to match the stylistic pattern of their teachers. Teachers tend to overestimate the extent to which their students match their own styles, and also evaluate more favorably students whose styles match their own. Thus, teachers are more likely to identify as “gifted” not only high ability students, but those who match them stylistically.

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4.
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5.
Background With the increased attention on the implementation of inquiry activities in primary science classrooms, a growing interest has emerged in assessing students’ science skills. Research has thus far been concerned with the limitations and advantages of different test formats to assess students’ science skills.

Purpose This study explores the construction of different instruments for measuring science skills by categorizing items systematically on three subskill levels (science-specific, thinking, metacognition) as well as on different steps of the empirical cycle.

Sample The study included 128 fifth and sixth grade students from seven primary schools in the Netherlands.

Design and method Seven measures were used: a paper-and-pencil test (PPT), three performance assessments, two metacognitive self-report tests, and a test used as an indication of general cognitive ability.

Results Reliabilities of all tests indicate sufficient internal consistency. Positive correlations between the PPT and the three performance assessments show that the different tests measure a common core of similar skills thus providing evidence for convergent validity. Results also show that students’ ability to perform scientific inquiry is significantly related to general cognitive ability. No relationship was found between the measure of general metacognitive ability and either the PPT or the three performance assessments. By contrast, the metacognitive self-report test constructed to obtain information about the application of metacognitive abilities in performing scientific inquiry, shows significant – although small – correlations with two of the performance assessments. Further explorations reveal sufficient scale reliabilities on subskill and step level.

Conclusions The present study shows that science skills can be measured reliably by categorizing items on subskill and step level. Additional diagnostic information can be obtained by examining mean scores on both subskill and step level. Such measures are not only suitable for assessing students’ mastery of science skills but can also provide teachers with diagnostic information to adapt their instructions and foster the learning process of their students.  相似文献   


6.
An account of an experiment in self‐assessed learning where the lecturer used his authority to give his students responsibility for their own assessment. Students were expected to set their own goals, week‐by‐week, and prepare a self‐assessment, which was open to questioning and discussion by other members of the group, but which involved only the individual student in the final decision.

The difficulties encountered are clearly stated, but the final judgment is that only such methods can achieve deep processing in Higher Education. It is also argued that conventional methods of evaluation are inappropriate for this style of learning.  相似文献   


7.
Background: As one part of scientific meta-knowledge, students’ meta-modelling knowledge should be promoted on different educational levels such as primary school, secondary school and university. This study focuses on the assessment of university students’ meta-modelling knowledge using a paper–pencil questionnaire.

Purpose: The general purpose of this study was to assess and to describe university students’ meta-modelling knowledge. More specifically, it was analysed to what extent the meta-modelling knowledge, as expressed in a questionnaire, depends on the scientific discipline to which university students relate their answer and the concrete model to which they refer while answering.

Sample: N = 184 students from one German university voluntarily participated in this study.

Design and methods: The questionnaire was developed based on a theoretical framework for model competence and includes constructed response items asking about the purpose of models, ways for testing models and reasons for changing models. Students written answers were first analysed qualitatively based on the theoretical framework to decide whether they expressed advanced understandings or not. Further analyses then were conducted quantitatively.

Results: Findings suggest that only few university students possess an advanced meta-modelling knowledge. However, significant more students who relate their answers to the STEM-disciplines expressed advanced understandings than those who referred to social sciences or linguistics/philology. Furthermore, university students who expressed an advanced meta-modelling knowledge referred to rather abstract kinds of models in order to explain their view.

Conclusions: The present study supports the assumption that meta-modelling knowledge may be situated and contextualised. Both the scientific discipline and the concrete model to which university students refer seem to be relevant item features influencing university students’ expressed meta-modelling knowledge. Implications for assessment and teaching are discussed in the article.  相似文献   


8.
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9.
Background: The high rates of attrition in STEM (science, technology, engineering and mathematics) programmes causes concern over a future shortage of graduates entering STEM careers. Students’ first year experiences critically affect their motivation and are therefore also critical components of students’ academic success in terms of retention, learning and subsequent performance.

Purpose: This study explores STEM students’ encounters with an interdisciplinary first year. Specifically, motivational patterns towards learning in two introductory courses followed by students from multiple study programmes are investigated.

Sample: 173 Danish undergraduate students enrolled in three science programmes: biomedicine; biochemistry and molecular biology; and physics.

Design and methods: Within the framework of Self-Determination Theory, a measure of autonomous and controlled motivation forms the basis for quantitative analyses (n = 173). A qualitative thematic analysis of students’ open responses further supplements and gives nuance to the findings.

Results: The motivational pattern of physics students is found to differ significantly from that of biochemistry and molecular biology (BMB) students and biomedicine students. The comments reveal that some students struggle to realise the relevance of the course content for their chosen study programme to an extent that makes them reconsider their study choice.

Conclusions: The study offers input to the discussion of how to present inter- and/or multidisciplinarity to students and points to implications on two levels: curriculum design and course content. The findings are of importance to educational planners, decision-makers and teachers dealing with the motivational range that exists within their courses.  相似文献   


10.
Background: Uncertainty is a crucial element of scientific knowledge growth. Students should have some understanding of how science knowledge is developed and why scientific conclusions are considered more or less certain than others. A component of the nature of science, it is considered an important aspect of science education and allows students to recognize the limitations of scientific research.

Purpose: This study examined Grades 5 and 9 students’ views of uncertainty in their personal scientific research and the formal scientific research of professionals.

Sample: This study included 33 students in Grade 5 (n = 17) and Grade 9 (n = 16). The students were recruited from a charter school that emphasised inquiry instruction.

Design and methods: Data were collected through interviews. Students were asked their views of their inquiry-based projects and their views of professional science.

Results: Interview data and statistical analyses indicated that students recognized uncertainty in personal science, which varied across elements of the scientific process. Additionally, their views of uncertainty in formal science tended to change across grades and knowledge of uncertainty in personal and formal science were positively correlated.

Conclusion: These findings offer insights into the processes by which students come to understand uncertainty in science and point to ways of fostering such knowledge through teaching practices.  相似文献   


11.
One of the objectives of the process technology curriculum at Wageningen University is that students learn how to design mathematical models in the context of process engineering, using a systematic problem analysis approach. Students find it difficult to learn to design a model and little material exists to meet this learning objective. For these reasons, a set of digital tools has been developed to support students when learning to design mathematical models. The set of tools enables a process engineering student to do each step in the systematic approach for designing models while providing feedback on the actions of the student.

The current paper describes both the system, the underlying design decisions and how one such case is used in a regular educational setting. Evaluation after use in a regular educational setting shows that students are very positive about the fact that there is feedback on every step of the design process and that there is no need to deal with complicated mathematics.  相似文献   


12.
Metacognition is considered by most educationists as an element necessary for many cognitive tasks. In problem solving, it has been said that possessing knowledge alone is insufficient and problem solvers need to exhibit high level cognitive skills like “self-regulation skills” (also known as metacognitive strategies) for successful problem solving.

A study on students' metacognitive strategies was carried out with over a thousand secondary and pre-university students from 12 schools. A questionnaire adapted from Biggs (1987) was administered to students at various levels (Secondary 2, Secondary 4, Pre-University 1), from different academic tracks (General, Science, Arts) and academic streams (Special, Express, and Normal). They were required to self-report on their metacognitive beliefs; their use of metacognitive strategies in mental tasks involving memory, problem solving and comprehension; and their attitudes towards the learning of various academic subjects. 20 items from the questionnaire which were related to problem solving were categorized into four stages, namely, orientation, organisation, execution and verification and data from these items were analysed.

Some findings that emerged were:

  • (a) Normal stream students exhibited a lower usage of metacognitive strategies as compared to students from the Express and Special streams.

  • (b) Metacognitive strategies used by Normal stream students tended to be of the “surface” type.

  • (c) There was no significant difference in the frequency of usage of metacognitive strategies between students from different academic tracks.

  • (d) During the problem solving process, students spent most time on evaluation of answers rather than on monitoring their understanding.

  • (e) Students from different levels (Secondary 2, Secondary 4 and Pre-University) exhibited similar frequency of usage of metacognitive strategies in problem solving.

  • The implications of these findings on future research and development projects as well as the teaching of metacognitive strategies are discussed in the paper.

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13.
Summary Tanzanian educators recognize the need to ally education more clearly to economic development, for they see in a revitalized economy the impetus for the growth of social services. The shortcomings in the educational system which must help accomplish this are clear. They realize that the ‘education for self‐reliance'policies have only slightly altered the nation's economy and have done little to create the ‘new’ socialist person. Teachers, their students, and parents do not yet possess the attitudes necessary to promote cooperation and service; and the majority of students do not attain the knowledge and skills necessary for an economy to prosper.

The nation's educational bureaucracy must also be committed to dramatic change. To date, only cosmetic changes have occurred in the way schools are administered. While leadership at the top has been sincere, regional and local educational leaders often only pay lip service.

Revolutionary change in Tanzanian education could come quickly through coercion and force. However, that is not the Tanzanian way and the chosen path. Instead, change is to be accomplished through the democratic process of enlightenment and dedication. This takes time. The major question is whether Tanzania still has the time.  相似文献   


14.
Background: A teaching method to improve students’ ability to communicate ideas in genetics across the macro–micro levels of organisation was investigated in this study.

Purpose: It is designed to help students deconstruct the level of organisation of each tier of a genetic diagram, as the symbols used in such diagrams (i.e. lines and letters) can be too abstract to serve as hints for students to identify the level of organisation.

Design and method: The method employs hybrid dynamic visualisation, which combines static (e.g. a genetic diagram) and dynamic visualisations (e.g. meiotic cell division, fertilisation). The method also addresses the learning problem wherein students isolate the conceptual components of the processes of meiotic cell division and fertilisation from the procedural components of genetic diagrams. The new pedagogy was trialled in a voluntary enrichment course with 22 Secondary Six (or 12th grade) students.

Results: The results of conceptual assessments and individual interviews show that the participating students, in general, provided more explanations at the molecular level, although there is considerable room for improvement in making a smooth macro–micro transition. Students also had a better grasp of the symbolic representation and mathematical concepts of genetics. In addition, their responses in individual interviews revealed that they shared a restricted understanding of the term ‘recessiveness’.

Conclusion: Possible scaffolds for revisiting the concept of recessiveness in regular teaching are suggested.  相似文献   


15.
Background: Complexity models have provided a suitable framework in various domains to assess students’ educational achievement. Complexity is often used as the analytical focus when regarding learning outcomes, i.e. when analyzing written tests or problem-centered interviews. Numerous studies reveal negative correlations between the complexity of a task and the probability of a student solving it.

Purpose: Thus far, few detailed investigations explore the importance of complexity in actual classroom lessons. Moreover, the few efforts made so far revealed inconsistencies. Hence, the present study sheds light on the influence the complexity of students’ and teachers’ class contributions have on students’ learning outcomes.

Sample: Videos of 10 German 8th grade physics courses covering three consecutive lessons on two topics each (electricity, mechanics) have been analyzed. The sample includes 10 teachers and 290 students.

Design and methods: Students’ and teachers’ verbal contributions were coded manual-based according to the level of complexity. Additionally, pre-post testing of knowledge in electricity and mechanics was applied to assess the students’ learning gain. ANOVA analysis was used to characterize the influence of the complexity on the learning gain.

Results: Results indicate that the mean level of complexity in classroom contributions explains a large portion of variance in post-test results on class level. Despite this overarching trend, taking classroom activities into account as well reveals even more fine-grained patterns, leading to more specific relations between the complexity in the classroom and students’ achievement.

Conclusions: In conclusion, we argue for more reflected teaching approaches intended to gradually increase class complexity to foster students’ level of competency.  相似文献   


16.
Background: Research on peer assessment has noted ambiguity among students in using peer assessment for improving their work. Previous research has explained this in terms of deficits in the student feedback, or differences in student views of what counts as high-quality work.

Purpose: This study frames peer assessment as a social process in the science classroom. The aim is to explore peer assessment in science education as social practice in order to contribute to an understanding of the affordances and constraints of using peer assessment as a learning tool in science education.

Design and Method: The study was conducted in four lower secondary school classes, school years 8 and 9, in two different schools. An intervention study was designed focussing on the topic of experimental design. It involved the students in a process of peer assessment where they designed experiments individually, and then exchanged their designs, conducted each other’s experiments, provided feedback to each other and revised their original design after discussing the feedback in groups. Data were collected in the form of audio recordings of student discussions and written work.

Results: The results show that, although not all peer feedback resulted in revisions, peer feedback was useful to the students in group interaction when negotiating quality in their work.

Conclusions: To conclude, the potential for using peer assessment in science education should not only be evaluated through the students’ revisions but also in terms of in what ways the feedback constitutes interactional resources for defining quality in student work.  相似文献   


17.
Studies on the nurturing of creativity by university teachers are rare. In the present study 233 students from two universities, one ranked as one of the best in Brazil (University A) and another ranked low among Brazilian universities (University B) were asked to fill out an inventory designed to evaluate the degree to which different aspects related to creativity had been fostered by their university teachers. Students from University A, compared with those from University B, rated their teachers as providing significantly more favourable conditions for the nurturing of creativity. It was also found that students from the first half of their courses, compared with those from the second half, evaluated their teachers as nurturing significantly more different aspects of creativity. The results point to some characteristics of the learning situation that may contribute to the promotion of creative abilities. These characteristics should be implemented in the educational setting, in order to prepare students for the creative productivity that is necessary in all societies.

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18.
Background: In recent research, affective learning environments and affective support have been receiving increasing attention for their roles in stimulating students’ learning outcomes. Despite its raising importance, little is known about affective support in educational contexts in developing countries. Moreover, international student assessment programmes (e.g. PISA and TIMSS) reveal poor science proficiency of students in most of those countries, which provokes the question of how to make positive changes in students’ perspectives and attitudes in science.

Purpose: In the current study, the purpose was to investigate the relations among perceived teacher affective support (PTAS), academic emotions (academic enjoyment, academic anxiety, and academic hopelessness), academic self-efficacy and behavioural engagement in elementary school science classrooms in Turkey.

Sample: A total of 633 fourth- and fifth-grade students in eight elementary schools in Istanbul, Turkey were participated in the study.

Design and methods: A self-report questionnaire was administered to participating students. The data were analysed using structural equation modelling.

Results: Findings showed that PTAS was both directly and indirectly related to the given variables. PTAS was found to be significantly positively associated with students’ academic enjoyment, academic self-efficacy and behavioural engagement and significantly negatively related to their academic anxiety and academic hopelessness in science classrooms. An important finding is that the total effect of PTAS on behavioural engagement, a factor strongly associated with academic success in all disciplines, was as strong as the effect of students’ perceived academic self-efficacy beliefs in science.

Conclusions: Findings suggest that PTAS may help promoting positive emotions and motivation among students in science classrooms, eventually leading to more desirable attitudes and achievement outcomes in science. Teacher affective support deserves greater recognition from researchers, educational policy-makers, administrators and teachers to build better learning conditions for all students.  相似文献   


19.
The development of creative problem solving in a civil engineering degree course since the late 1960s is outlined. It is shown that prior to the Finniston Report, Middlesex Polytechnic had begun to educate civil engineers to meet an ever changing world.

The results of a psychological testing programme confirm that it is possible to increase the creative ability of students during a civil engineering degree course. An attempt is made to predict the performance of students on examinations and current lines of research are indicated.  相似文献   


20.
Background: Researchers have indicated that assessment practices and methods should support learners’ construction of meaningful understanding of knowledge. Understanding students’ conceptions of assessment will enable us to construct more realistic, valid and fair assessments. Learners’ conceptualization of assessment would be imperative to serve as an essential reference to evaluate their learning progress.

Purpose: This study evaluated and compared the Singaporean and Taiwanese middle school students’ conceptions of science assessment. Within-country gender comparisons were also explored.

Sample: 424 Taiwanese and 333 Singaporean eighth graders were invited for a cross-country comparison.

Design and methods: The participants completed a questionnaire named Conceptions of Science Assessment.

Results: The findings showed that the summative assessment dominates in the Taiwanese classrooms, while formative and summative assessment are usually perceived in Singaporean classrooms. The Singaporean students had a greater tendency than their Taiwanese counterparts to perceive the purpose of assessment as a way of reproducing knowledge, and the formative assessment as improving learning, problem-solving, and critical judgment. No gender differences were found among either the Singaporean or the Taiwanese students.

Conclusions: Educators in both countries should provide learners with more opportunities to experience process-oriented science assessment activities and de-emphasize the usage of examination-oriented practices to achieve the sophistication of conceptions.  相似文献   


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