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1.
Luli Stern Nitza Barnea Sofia Shauli 《Journal of Science Education and Technology》2008,17(4):305-315
The objective of this study was to evaluate the effect of a dynamic software simulation on the understanding of the kinetic
molecular theory by 7th graders. Students in the control group (n = 62) studied a curricular unit that addressed the differences in arrangement and motion of molecules in the three phases
of matter. The experimental group (n = 71) studied the same unit combined with a few computer lessons using a software simulation. The results indicate that the
students in the experimental group scored significantly higher than those in the control group. Nonetheless, while both groups
of students improved their understanding of the kinetic molecular theory, the overall achievements were very low. These findings
suggest that the simulation improved the understanding of the 7th graders; however, it was insufficient in itself to promote
meaningful learning. Statistically significant gender differences were not observed. This paper concludes with a discussion
of the educational implications of this study. 相似文献
2.
This study investigated the effects of presenting domain information (basic information about the domain) either together with or instead of offering exploratory practice (an exploratory opportunity in a simulation-based representation of the learning domain) prior to inquiry learning for facilitating students' hypothesis generation and subsequent inquiry processes and their knowledge acquisition. Secondary school students (n = 118) completed a simulation-based inquiry task on force and motion. They were randomly assigned to one of four conditions: the D + E condition (n = 29), in which domain information and exploratory practice were available; the D condition (n = 30), in which only domain information was available; the E condition (n = 32), in which only exploratory practice was available; or the C condition (n = 27), with no support at all. Students' knowledge was measured with a pre- and posttest and a test on knowledge of variables. Inquiry processes were inferred from information students entered in a Hypothesis Scratchpad and an Observation tool, and from a final summary that they had to write. Results indicated that providing students with domain information alone helps to foster their knowledge of variables before generating hypotheses and leads to knowledge acquisition. The results also showed that the opportunity to explore before experimenting does not affect students' inquiry behavior or learning performance, even when combined with providing students with domain information. 相似文献
3.
Stefanie M. Attardi Douglas J. Gould Rebecca L. Pratt Victoria A. Roach 《Anatomical sciences education》2022,15(4):685-697
Gross anatomy is a source of anxiety for matriculating medical students due to the large volume of information presented in a truncated timeline, and because it may be their first exposure to human cadavers. This study aimed to assess if video-based resources would affect matriculating medical students' anatomy state anxiety levels. Videos were designed to be short, YouTube-based units that served to provide orientation information about the anatomy course, dissection facilities, and available study resources to dispel anxiety around beginning their anatomy studies. To evaluate the impact of the videos, students in two consecutive matriculating years (2018 and 2019) completed the validated State-Trait Anxiety Inventory and a demographic questionnaire. The 2019 cohort (n = 118) served as the experimental group with access to the videos; while the 2018 cohort (n = 120) without video access served as a historical control. Analyses revealed that the groups were equivalent in terms of trait anxiety (P = 0.854) and anatomy state anxiety even when student video exposure was controlled (P = 0.495). Anatomy state anxiety was only significantly lower in students with prior formal anatomy exposure (P = 0.006). Further inquiry into students' prior anatomy experience identified that individuals with post-secondary dissection experience were significantly less anxious than those without formal anatomical experience (P = 0.023). These results may serve as a cautionary tale to educators; while preference for video-based instructional materials is prevalent in the literature, videos delivered on public social media platforms fail to prepare students for the psychological impact of studying human anatomy. 相似文献
4.
To investigate the effects of example format (erroneous examples vs. correct examples) and feedback format (elaborated feedback vs. knowledge of results feedback) on medical students' diagnostic competence in the context of a web-based learning environment containing case-based worked examples, two studies with a 2 × 2 design were conducted in the laboratory. In the first study (domain: arterial hypertension; N = 153) erroneous examples were effective in combination with elaborated feedback with respect to strategic and conditional knowledge. In the second study (domain: hyperthyroidism, N = 124), elaborated feedback supported all aspects of diagnostic competence, especially conditional knowledge. 相似文献
5.
This longitudinal study focused on change in university students' beliefs about the role of teachers. The students (n = 80) were Estonian undergraduates, whose beliefs were investigated in the first and third years of their studies and followed up to the point at which the students either entered teacher education or chose other paths. Beliefs about teaching were neither unambiguously persistent nor malleable. Students who continued in teacher education exhibited stronger beliefs about the teacher as pedagogue and aligned less with the belief that the teacher's role is to be a subject matter expert than peers who did not choose teacher education. 相似文献
6.
Although teacher motivation is posited to matter for students' learning experiences, this remains largely uninvestigated, particularly in higher education. In two studies, we analyzed the role of higher education teachers' achievement goals and self-efficacy for students' learning experiences. In Study 1 (k = 166 teachers, n = 2,106 students), we assessed teachers' motivations at the semester start, and students' course-specific perceptions of teaching quality (overall rating, learning) and emotions (joy, boredom) at the semester end. Latent multilevel modeling indicated favorable associations for teachers' self-efficacy, but not for their goals. In Study 2 (k = 96 teachers, n = 16,009 students), we assessed the same constructs and measured students' learning experiences weekly regarding 828 specific course sessions. Additionally, we included teachers’ session-specific motivations. Results replicated the effects of self-efficacy on the teacher-level and suggested that performance-approach and performance-avoidance goals primarily matter on the level of specific sessions. This affirms the relevance of teacher motivations and illuminates the importance of their specificity. 相似文献
7.
8.
Lucinda Kerawalla Karen Littleton Eileen Scanlon Ann Jones Mark Gaved Trevor Collins 《Interactive Learning Environments》2013,21(6):497-515
Student engagement in the design and implementation of inquiries is an effective way for them to learn about the inquiry process and the domain being studied. However, inquiry learning in geography can be challenging for teachers and students due to the complexity of scientific inquiry and the diversity of pupils' and teachers' knowledge and abilities. To address this, the Personal Inquiry project has designed a tool kit that includes nQuire, a Web-based tool to support students through the inquiry process. Here, we identify when, across five lessons comprising an inquiry into microclimates, nQuire was used by a teacher and a case study group of her 12 to 13-year-old students, and the ways in which they adopted nQuire as a tool to facilitate the creation of a coherent and cumulative inquiry learning experience over time. We found that students' use of nQuire supported them in capturing and representing their evolving understanding of inquiry, in defining and supporting their progression through the process of inquiry and in resourcing their cognitive engagement in data interpretation and representation. nQuire supported the students in accumulating and integrating new understandings across contexts and over time. In this way, nQuire successfully resourced and supported the students' learning journeys or trajectories. We conclude that nQuire can be an effective tool for supporting teachers' and students' understanding of the nature of inquiry and how to design and implement inquiries of their own. 相似文献
9.
Investigations of a complex,realistic task: Intentional,unsystematic, and exhaustive experimenters 总被引：1，自引：0，他引：1
This study examines how students' experimentation with a virtual environment contributes to their understanding of a complex, realistic inquiry problem. We designed a week‐long, technology‐enhanced inquiry unit on car collisions. The unit uses new technologies to log students' experimentation choices. Physics students (n = 148) in six diverse high schools studied the unit and responded to pretests, posttests, and embedded assessments. We scored students' experimentation using four methods: total number of trials, variability of variable choices, propensity to vary one variable at a time, and coherence between investigation goals and experimentation methods. Students made moderate, significant overall pretest to posttest gains on physics understanding. Coherence was a strong predictor of learning, controlling for pretest scores and the other experimentation measures. We identify three categories of experimenters (intentional, unsystematic, and exhaustive) and illustrate these categories with examples. The findings suggest that students must combine disciplinary knowledge of the investigation with intentional investigation of the inquiry questions in order to understand the nature of the variables. Mechanically executing well‐established experimentation procedures (such as varying one variable at a time or comprehensively exploring the experimentation space) is less likely to lead students to valuable insights about complex tasks. Our proposed categories extend and refine previous efforts to categorize experimenters by linking scientific procedures with understanding of the science discipline. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 745–770, 2011 相似文献
10.
Argumentation and scientific discourse are essential aspects of science education and inquiry in the 21st century. Student groups often struggle to enact these critical science skills, particularly with challenging content or tasks. Social regulation of learning research addresses the ways groups attempt to navigate such struggles by collectively planning, monitoring, controlling, and reflecting upon their learning in collaborative settings. Such regulation and argumentation can also elicit socioemotional responses and interactions. However, little is known regarding how regulation processes and socioemotional interactions manifest among students involved in small-group discourse about scientific phenomena. As such, in this qualitative study, we explored social regulation of learning, scientific argumentation discourse, and socioemotional interactions in the discussions of two groups of high school physics students (n = 7, n = 6). We found key qualitative distinctions between the two groups, including how they enacted planning activities, their emphasis on challenging other’s ideas versus building shared understanding, and how socioemotional interactions drove discourse. Commonalities across groups included how regulation initiation related to discourse, as well as how the difficulty of the content hindered, and teacher support augmented, the enactment of social regulation. Finally, we found overlapping regulation and discourse codes that provide a foundation for future work. 相似文献
11.
This study examined whether and why assigning children to a segmented inquiry task makes their investigations more productive. Sixty-one upper elementary-school pupils engaged in a simulation-based inquiry assignment either received a multivariable inquiry task (n = 21), a segmented version of this task that addressed the variables in successive order (n = 21), or could formulate a task themselves (n = 19). Results showed that children are naturally inclined to pose single-variable inquiry questions. Segmented tasks, in addition, invoked more systematic but equally comprehensive investigations than a single, unsegmented task. More systematic experimentation was associated with more valid inferences and beliefs. These findings demonstrate that dividing a multivariable inquiry task into a series of single-variable subtasks facilitates the control of variables rather than the control of the learning process, and promotes inference performance and conceptual understanding. 相似文献
12.
This research addresses issues in the design of online scaffolds for regulation within inquiry learning environments. The
learning environment in this study included a physics simulation, data analysis tools, and a model editor for students to
create runnable models. A regulative support tool called the Process Coordinator (PC) was designed to assist students in planning,
monitoring, and evaluating their investigative efforts within this environment. In an empirical evaluation, 20 dyads received
a “full” version of the PC with regulative assistance; dyads in the control group (n = 15) worked with an “empty” PC which contained minimal structures for regulative support. Results showed that both the frequency
and duration of regulative tool use differed in favor of the PC+ dyads, who also wrote better lab reports. PC− dyads viewed
the content helpfiles more often and produced better domain models. Implications of these differential effects are discussed
and suggestions for future research are advanced. 相似文献
13.
Conceptual change is a gradual process that occurs as students integrate new information into their existing conceptions. Throughout this process, assessing learning requires measures to diagnose misconceptions and understand how knowledge is changing. We developed three measures of misconceptions to assess students' knowledge early in instruction on decimals that measured the: 1) prevalence of misconception errors based on response patterns, 2) existence of misconceptions in a more abstract context, and 3) strength of misconceptions using confidence ratings. Students ages 9–11 (N = 297) completed the assessment at three time points. These measures revealed that whole number and role of zero misconceptions decreased and fraction misconceptions increased over time. The current measures also differentiated between weaker misconceptions that were changed after brief instruction and strongly held misconceptions. The current measures can create a more complete picture of knowledge than only measuring students' accuracy, providing a window into the conceptual change process. 相似文献
14.
15.
Learning from direct instruction can be enhanced by preparatory invention tasks: students invent an index that allows to differentiate a set of cases regarding important aspects (self-regulated). However, contradictory results have been found. As self-regulated activities often need practice, we tested whether the contradictory findings persist when students can practice inventing. We randomly assigned 99 eighth-grade students to two conditions (independent variable): they either invented twice (self-regulated; n = 49) or worked through worked solutions of the two tasks (guided; n = 50) before learning about ratios in physics from a lecture. Extraneous load, deep-structure recall, knowledge-gap perception, and self-efficacy were potential mediators. Transfer was the dependent measure. Guidance led to less extraneous load. However, self-regulation led to higher transfer because the students devoted more attention to the deep structure of the preparation tasks. Our findings suggest that—given some practice—self-regulated outperforms guided preparation for learning from direct instruction. 相似文献
16.
Comparing two types of model progression in an inquiry learning environment with modelling facilities 总被引：2，自引：0，他引：2
The educational advantages of inquiry learning environments that incorporate modelling facilities are often challenged by students’ poor inquiry skills. This study examined two types of model progression as means to compensate for these skill deficiencies. Model order progression (MOP), the predicted optimal variant, gradually increases the specificity of the relations between variables, whereas model elaboration progression (MEP) gradually expands the number of variables in the task. The study utilized a between-subject design with three conditions: a MOP condition (n = 28), a MEP condition (n = 26), and a control condition without model progression (n = 30). Consistent with expectations, model progression enhanced students’ task performance; a comparison among the two model progression conditions confirmed the predicted superiority of the MOP condition. These results are discussed in relation to the inconsistent findings from prior research. Based on this discussion ways to optimize model order progression are advanced. 相似文献
17.
Vasileios Mitrousias Theofilos S. Karachalios Sokratis E. Varitimidis Konstantinos Natsis Dimitrios L. Arvanitis Aristeidis H. Zibis 《Anatomical sciences education》2020,13(4):436-444
Human cadaveric prosections are a traditional, effective, and highly appreciated modality of anatomy learning. Plastic models are an alternative teaching modality, though few studies examine their effectiveness in learning of upper limb musculoskeletal anatomy. The purpose of this study is to investigate which modality is associated with a better outcome, as assessed by students' performance on examinations. Overall, 60 undergraduate medical students without previous knowledge of anatomy participated in the study. Students were assigned into two groups. Group 1 attended lectures and studied from cadaveric prosections (n = 30) and Group 2 attended lectures and used plastic models in the laboratory (n = 30). A knowledge assessment, including examination with tag questions (spot test) and written multiple-choice questions, was held after the end of the study. Students' perceptions were also investigated via an anonymous questionnaire. No significant difference in students' performance was observed between the group using prosections and the group using plastic models (32.2 ± 14.7 vs 35.0 ± 14.8, respectively; P = 0.477). Similarly, no statistically significant difference was found regarding students' satisfaction from using each learning modality (P = 0.441). Plastic models may be a valuable supplementary modality in learning upper limb musculoskeletal anatomy, despite their limitations. Easy to use and with no need for maintaining facilities, they are highly appreciated by students and can be useful when preparing for the use of cadaveric specimens. 相似文献
18.
The aim of this experimental study was to compare learning outcomes of students using a simulation alone (simulation environment) with outcomes of those using a simulation in parallel with real circuits (combination environment) in the domain of electricity, and to explore how learning outcomes in these environments are mediated by implicit (only procedural guidance) and explicit (more structure and guidance for the discovery process) instruction. Matched‐quartets were created based on the pre‐test results of 50 elementary school students and divided randomly into a simulation implicit (SI), simulation explicit (SE), combination implicit (CI) and combination explicit (CE) conditions. The results demonstrated that the instructional support had an expected effect on students' understanding of electric circuits when they used the simulation alone; pure procedural guidance (SI) was insufficient to promote conceptual understanding, but when the students were given more guidance for the discovery process (SE) they were able to gain significant amount of subject knowledge. A surprising finding was that when the students used the simulation and the real circuits in parallel, the explicit instruction (CE) did not seem to elicit much additional gain for their understanding of electric circuits compared to the implicit instruction (CI). Instead, the explicit instruction slowed down the inquiry process substantially in the combination environment (CE). Although the explicit instruction was able to improve students' conceptual understanding of electrical circuits considerably in the simulation environment, their understanding did not reach the level of the students in the combination environment. These results suggest that when teaching students about electricity, the students can gain better understanding when they have an opportunity to use the simulation and the real circuits in parallel than if they have only a computer simulation available, even when the use of the simulation is supported with the explicit instruction. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 48: 71–93, 2011 相似文献
19.
Nicole M. McNeil David H. Uttal Linda Jarvin Robert J. Sternberg 《Learning and Instruction》2009,19(2):171-184
How do concrete objects that cue real-world knowledge affect students' performance on mathematics word problems? In Experiment 1, fourth- and sixth-grade students (N = 229) solved word problems involving money. Students in the experimental condition were given bills and coins to help them solve the problems, and students in the control condition were not. Students in the experimental condition solved fewer problems correctly. Experiment 2 tested whether this effect was due to the perceptually rich nature of the materials. Fifth-grade students (N = 79) were given: perceptually rich bills and coins, bland bills and coins, or no bills and coins. Students in the perceptually rich condition made the most errors; however, their errors were least likely to be conceptual errors. Results suggest that the use of perceptually rich concrete objects conveys both advantages and disadvantages in children's performance in school mathematics. 相似文献
20.
Teacher enthusiasm and student engagement are often interrelated and have important implications for student learning and students' and teachers' well-being. However, results on the lesson-specific variation of teachers' and students' affective-motivational experiences and their interplay are scarce. This study investigated variation in teacher enthusiasm and student engagement, each rated by teachers (n = 70) and students (n = 1537), as indicators of a shared affective-motivational climate in ninth-grade math classrooms across five consecutive lessons. Multitrait-multistate analyses revealed substantial “trait-like” consistency in all four affective-motivational measures. However, there was also a substantial degree of “state-like” lesson-specific variance that was shared across the four measures. This indicates that teachers' and students’ affective-motivational experiences are shaped by situation-specific influences and person-by-context interactions, which are shared between teachers and students. Teacher gender, teaching experience, class-level achievement, and the availability of motivationally supportive instructional interventions failed to explain substantial variance in these associations. 相似文献