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1.
《学校用计算机》2012,29(4):255-273
Abstract

We explored the potential of a robotics application in education as a measurement tool of child executive functioning skills. Sixty-five kindergarteners received assignments to go through a maze with a programmable robot, the Bee-Bot. Via observation we quantified how they solved these tasks. Their performance was successfully aggregated into a latent variable, which was used to predict the outcomes on standardized tasks that measure executive functioning. The latent variable significantly predicted performance on several tasks that measure problem-solving abilities, memory, visuospatial abilities and attention. It did not significantly predict pencil-and-paper tasks that measured visuospatial ability and nonverbal or design fluency. This study showed that it is possible to use a playful robotics task to obtain information on children’s ability. We recommend more research on using diverse robots in larger samples with different age groups to further explore the possibilities of robots as a test instrument.  相似文献   

2.
Abstract

The effects of overt verbalization anti practice on problem solving ability were examined. The 100 secondary school students who served as Ss were divided into four groups: (1) those who received practice word problems and solved problems while thinking aloud, (2) those who did not practice but solved problems while thinking aloud, (3) those who practiced but did not verbalize, and (4) those who received no practice and did not verbalize. Analysis of variance revealed that neither overt verbalization nor practice significantly influenced problem solving scores. However, Ss who were required to think aloud made significantly more computational errors than those who worked without verbalizing.  相似文献   

3.
ABSTRACT

This study sought to a better understanding of the construct of problem solving in technology-rich environments and the effect of literacy and numeracy on problem solving. Data used in this study were drawn from Programme for the International Assessment of Adult Competencies US data which includes 5010 completed cases and a total of 1326 variables. The assessment of literacy, numeracy and problem-solving competencies were administrated using computer-based approaches. The result of the study showed that adults with higher numeracy and literacy competencies were more likely to have higher level of problem-solving skills. The results of the analyses also revealed that solution latency (i.e. time) were an important factor influencing problem-solving skills. This study indicates that basic mathematical skills are essential for solving problems that require interpersonal communication, computer and software knowledge, planning, and organising. The findings from this study provide several implications for researchers, educators, teachers and policymakers.  相似文献   

4.
ABSTRACT

Background: Recent developments in STEM and computer science education put a strong emphasis on twenty-first-century skills, such as solving authentic problems. These skills typically transcend single disciplines. Thus, problem-solving must be seen as a multidisciplinary challenge, and the corresponding practices and processes need to be described using an integrated framework.

Purpose: We present a fine-grained, integrated, and interdisciplinary framework of problem-solving for education in STEM and computer science by cumulatively including ways of problem-solving from all of these domains. Thus, the framework serves as a tool box with a variety of options that are described by steps and processes for students to choose from. The framework can be used to develop competences in problem-solving.

Sources of evidence: The framework was developed on the basis of a literature review. We included all prominent ways of domain-specific problem-solving in STEM and computer science, consisting mainly of empirically orientated approaches, such as inquiry in science, and solely theory-orientated approaches, such as proofs in mathematics.

Main argument: Since there is an increasing demand for integrated STEM and computer science education when working on natural phenomena and authentic problems, a problem-solving framework exclusively covering the natural sciences or other single domains falls short.

Conclusions: Our framework can support both practice and research by providing a common background that relates the ways, steps, processes, and activities of problem-solving in the different domains to one single common reference. In doing so, it can support teachers in explaining the multiple ways in which science problems can be solved and in constructing problems that reflect these numerous ways. STEM and computer science educational research can use the framework to develop competences of problem-solving at a fine-grained level, to construct corresponding assessment tools, and to investigate under what conditions learning progressions can be achieved.  相似文献   

5.
Abstract

Two studies were conducted concurrently to determine whether there are significant differences in selected characteristics between economically disadvantaged and economically advantaged five-year-olds. The areas investigated included physical skills, social skills, language skills, intelligence, emotional disturbance, creativity in the use of materials, curiosity, attention to and interest in stories, preference for rewards, sensory discrimination ability, problem solving ability, and ability to conserve, Eight null hypotheses were supported, three null hypotheses were not supported, and three null hypotheses were partially supported.  相似文献   

6.
Abstract

The purpose of this study was to investigate the effectiveness of a training program in creative thinking and problem solving on children from varying racial backgrounds and social-class levels. The Ss were 218 fifth and sixth grade students. All Ss were administered the Torrance Tests of Creative Thinking, Form A. The experimental Ss participated in the eight-week Productive Thinking Program and the control Ss in the Gates-Peardon Reading Exercises. At the completion of the Program, all Ss were administered the Torrance Tests of Creative Thinking, Form B. The results indicate that participation in the Productive Thinking Program enabled the students to improve their creative thinking and problem-solving abilities. Neither race nor social-class level affected the child's ability to increase these skills.  相似文献   

7.
In this article, we present the results from a longitudinal examination of the impact of a Standards-based or reform mathematics curriculum (called CMP) and traditional mathematics curricula (called non-CMP) on students’ learning of algebra using various outcome measures. Findings include the following: (1) students did not sacrifice basic mathematical skills if they are taught using a Standards-based or reform mathematics curriculum like CMP; (2) African American students experienced greater gain in symbol manipulation when they used a traditional curriculum; (3) the use of either the CMP or a non-CMP curriculum improved the mathematics achievement of all students, including students of color; (4) the use of CMP contributed to significantly higher problem-solving growth for all ethnic groups; and (5) a high level of conceptual emphasis in a classroom improved the students’ ability to represent problem situations. (However, the level of conceptual emphasis bears no relation to students’ problem solving or symbol manipulation skills.)  相似文献   

8.
The purpose of this study was to examine the effectiveness of traditional versus guided inquiry (with problem-solving process and cognitive function training) on high school chemistry knowledge, science process skills, scientific attitudes, and problem-solving competency. Two classes of students were recruited from three classes of Grade 11 students at one school in North-eastern Thailand. Using a split-plot design, students were assigned to an experimental (N = 34) and a control group (N = 31), and were administered (a) learning achievement tests (chemistry knowledge, science process skills, and scientific attitude), (b) a problem-solving competency test, and c) tests of cognitive functioning. The findings showed that students’ learning achievement and problem-solving competency in the guided inquiry group were significantly higher than in the traditional group. The effect of the new teaching method does not seem to stem solely from improvement in cognitive functioning. We attributed the improvement to greater flexibility in the amount of information provided by the teachers, more effortful processing by the students, and greater collaboration amongst the students.  相似文献   

9.
10.
ABSTRACT

The use of simulated instruction is a growing trend in social work education. This study examined the effectiveness of simulated instruction with undergraduate social work students. In this mixed methods study, the extent to which simulated instruction improved self-efficacy and practice readiness was assessed. Results of the study suggest that simulated instruction helps improve key practice skills and increases recognition of diversity in practice. Moreover, students self-reported increased mastery in interviewing, managing emotions, and engaging in culturally competent practice.  相似文献   

11.
The quality of children's social adaptation in preschool was related to levels of internalizing problem behavior following transition to kindergarten. Measures of peer acceptance, social skills, and social problem-solving ability were assessed in 79 4–5 year old children, and related to teacher's ratings of anxious/withdrawn behavior assessed concurrently and one year later. Boys and girls did not differ in mean levels of symptoms, but girls tended to show higher levels of stability in internalizing problem behavior than boys. As predicted, preschool-age children with relatively high rates of internalizing problem behavior tended to manifest lower levels of social competence than others. Moreover, low levels of social competence in preschool were robust predictors of persistently high levels of internalizing problems across the two time periods.  相似文献   

12.
ABSTRACT

Problem solving is perhaps the key characteristic that makes us human. Given the kinds of problems that we face in a competitive economy and society, the new generation of learners is ever more required to have problem-solving abilities. By drawing from the literature on technological pedagogical content knowledge, design thinking, general and specific methods of problem solving, and role of technologies for solving problems, this article highlights the importance of problem solving for future teachers and discusses strategies that can help them become good problem solvers and understand the requirements of teaching their students problem solving in technology-rich contexts. This article consists of two main parts. Part 1 focuses on strategies required to help preservice teachers to be better problem solvers, and Part 2 summarizes approaches to introduce preservice teachers to the methods of teaching problem solving. The strategies reviewed provide a tangible guidance for teacher education programs regarding how to promote future teachers’ problem-solving skills.  相似文献   

13.
This study examined the impact of microcomputer simulations on environmental problem solving by community college students. A subordinate question was also addressed: Was the test instrument, which was used to assess the outcome of the treatment, biased by reading ability? The quasiexperimental design used two intact groups of community college students and parallels an earlier study by Rivers and Vockell (1987). The experimental group was assigned three simulation modules that focused on lake pollution analysis, wastewater quality management, and population dynamics. The comparison group was not exposed to any simulations, and served as a quasicontrol to identify possible Hawthorne effects. Effectiveness was assessed by the Test of Integrated Process Skills (TIPS I and II). Statistical analyses were done with t tests, Pearson product-moment correlation coefficients, and reliability coefficients. The experimental group showed a highly significant improvement in problem-solving skills after treatment, t(33) = 4.42, p < 0.001. Subtest mean gain scores supported the hierarchical relationships among cognitive modes for transitional operational reasoners as reported by Yap and Yeany (1988). An analysis of the correlation between the TIPS I and Nelson-Denny reading test scores indicated that the TIPS did not have a reading-level bias for the subjects in this study. Informal and anecdotal observations described improvements in other problem-solving skills which were not measured by the TIPS.  相似文献   

14.
Abstract

The current study focuses on the calculation and word problem-solving skill profiles at the end of middle school and their relationships to previous skills and interest in math. The sample included 818 (48% boys) Estonian students from 31 schools. Math skills, reasoning, text comprehension, and interest in math were assessed in Grade 8. Latent profile analysis was used to identify latent profiles of calculation and word problem-solving skills in Grade 9 (age 15 years). Five latent profiles were found. Results indicated that students had significantly different math and cognitive skills; however, the interest level for average and lower-achieving students was quite similar. Students with the highest skills had an exceptionally high interest in math, showing that enhancing students’ interest together with academic skills might help to reach a high level of math skills by the end of middle school.  相似文献   

15.
The quality of children's social adaptation in preschool was related to levels of internalizing problem behavior following transition to kindergarten. Measures of peer acceptance, social skills, and social problem-solving ability were assessed in 79 4-5 year old children, and related to teacher's ratings of anxious/withdrawn behavior assessed concurrently and one year later. Boys and girls did not differ in mean levels of symptoms, but girls tended to show higher levels of stability in internalizing problem behavior than boys. As predicted, preschool-age children with relatively high rates of internalizing problem behavior tended to manifest lower levels of social competence than others. Moreover, low levels of social competence in preschool were robust predictors of persistently high levels of internalizing problems across the two time periods.  相似文献   

16.
杂草防除学是农业院校的必修课程,通过调整教学内容、改进教学手段和方法,加强和改进实践教学环节,并在此基础上改进课程的考核方式。即在整个教学过程中注重对学生能力与思维方法的训练,提高了学生的实践动手能力及分析和解决问题的能力,更增强了学生的创新意识,达到预期的教学效果和目的。  相似文献   

17.
Background: Scientific excellence is one of the most fundamental underpinnings of medical education and its relevance is unquestionable. To be involved in research activities enhances students' critical thinking and problem-solving capacities, which are mandatory competences for new achievements in patient care and consequently to the improvement of clinical practice. Purposes: This work aimed to study the relevance given by Portuguese medical students to a core of scientific skills, and their judgment about their own ability to execute those skills. Methods: A cross-sectional study was conducted on students attending the first, fourth and sixth years of medical course in the same period. An assessment istrument, exploring the importance given by Portuguese medical students to scientific skills in high school, to clinical practice and to their own ability to execute them, was designed, adapted and applied specifically to this study. Results: Students' perceptions were associated with gender, academic year, previous participation in research activities, positive and negative attitudes toward science, research integration into the curriculum and motivation to undertake research. The viewpoint of medical students about the relevance of scientific skills overall, and the ability to execute them, was independently associated with motivation to be enrolled in research. Conclusions: These findings have meaningful implications in medical education regarding the inclusion of a structural research program in the medical curriculum. Students should be aware that clinical practice would greatly benefit from the enrollment in research activities. By developing a solid scientific literacy future physicians will be able to apply new knowledge in patient care.  相似文献   

18.
Abstract

The purpose of this study was to ascertain the effects of Treatment TP (Prerequisite Principles) and Treatment TC (Conceptualization) on cognitive achievement of high school students varying in problem-solving ability. Treatment TP was designed according to Gagne’s hierarchy of learning, whereas Treatment TC was modified to include examples, analogies, mediators, cues, etc., to facilitate conceptualization. A sample of 80 high school students out of a group of 123. 33% with top problem-solving ability (PSA) scores and 33% with low PSA scores, was selected and randomly assigned to the two treatment groups. The scores on a final test of cognitive achievement served as the criterion measure (CM) of students’ achievement. A two-way ANOVA was used for analysis of the data.

Results indicated that students with high problem-solving ability (HPSA) scored significantly higher on CM than did students with low problem-solving ability (LPSA). No significant difference was found in the two treatments. However, pair-wise comparison indicated that HPSA and LPSA students in TC and HPSA students in TP scored significantly higher on CM than LPSA in TP. Results imply that more examples, analogies, cues, mediators, etc., to facilitate conceptualization should be designed for students with LPSA. And PSA tests should be employed for selecting students to reach higher cognitive achievement.  相似文献   

19.
ABSTRACT

The fluency of basic arithmetical operations is a precondition for mathematical problem solving. However, the training of skills plays a minor role in contemporary mathematics instruction. The authors proposed individualization of practice as a means to improve its efficiency, so that the time spent with the training of skills is minimized. As a tool to relieve teachers from the time-consuming tasks of individual diagnosis, selection of problems, and immediate feedback, they developed adaptive training software. The authors evaluated the application of the software in 2 naturalistic studies with 9 third-grade classes. Results show that even a moderate amount of individualized practice was associated with large improvements of arithmetic skills and problem solving, even after a follow-up period of 3 months.  相似文献   

20.
ABSTRACT

Background and Context: Current introductory instruction fails to identify, structure, and sequence the many skills involved in programming.

Objective: We proposed a theory which identifies four distinct skills that novices learn incrementally. These skills are tracing, writing syntax, comprehending templates (reusable abstractions of programming knowledge), and writing code with templates. We theorized that explicit instruction of these skills decreases cognitive demand.

Method: We conducted an exploratory mixed-methods study and compared students’ exercise completion rates, error rates, ability to explain code, and engagement when learning to program. We compared material that reflects this theory to more traditional material that does not distinguish between skills.

Findings: Teaching skills incrementally resulted in improved completion rate on practice exercises, and decreased error rate and improved understanding of the post-test.

Implications: By structuring programming skills such that they can be taught explicitly and incrementally, we can inform instructional design and improve future research on understanding how novice programmers develop understanding.  相似文献   

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