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Ard W. Lazonder 《Education and Information Technologies》2001,6(3):161-176
This study examined the efficacy of minimalist instruction to develop self-regulatory skills involved in Web searching. Two versions of minimalist self-regulatory skill instruction were compared to a control group that was merely taught procedural skills to operate the search engine. Acquired skills were tested on Web search tasks and search tasks in an online library catalogue. Self-regulatory skill instruction was found to increase practice time by 25%. However, it did not enhance search performance on the test tasks. Explanations are advanced for these findings and topics for further research are identified. 相似文献
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Successful use of ICT in the classroom requires thoughtful integration of technology and pedagogical processes during lesson preparation. This study investigated whether the information format of technological and pedagogical support affects pre-service teachers’ technology integration in lesson plans. One group of pre-service teachers (n = 37) received support materials that presented technological, pedagogical and content information separately; another group (n = 36) received a version of these materials in which the technological and pedagogical information was integrated. Pre-service teachers used these support materials to create a technology-infused lesson plan. As expected, the pre-service teachers who received integrated support had relatively more design justifications in which technology and pedagogy were combined than their peers from the separate support group. However, this more advanced reasoning did not materialise in higher-quality lesson plans. Future research should investigate whether pre-training in the use of ICT could improve the effects of integrated support. 相似文献
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Average-ability students often do not take full advantage of learning in mixed-ability groups because they hardly engage in the group interaction. This study examined whether structuring collaboration by group roles and ground rules for helping behavior might help overcome this participatory inequality. In a plant biology course, heterogeneously grouped fourth-grade boys (n=164) were randomly assigned to a structured collaboration condition or an unconstrained comparison condition. Results indicated positive effects of structured collaboration on average-ability students’ achievement, motivation, and contribution to the group interaction. Another positive result was that structuring collaboration did not lower the scores of the high and low-ability students on these measures. 相似文献
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News use and political discussion are often studied as important factors in understanding the effects of political efficacy on participation. However, measurements of external efficacy often blur distinctions between personal ability and government responsiveness. This study establishes a measure for perceptions of competence in the institutions of democratic government—government efficacy (GE). Drawing on panel survey data from the United States, confirmatory factor analysis introduces GE as a unique construct. Political efficacy dimensions are tested for their impact on news consumption, discussion, and political participation. Results add to the extant literature revolving the role of political efficacy on news use, discussion, and participation. 相似文献
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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
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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
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The present study investigated how presenting domain information influences scientific reasoning and knowledge acquisition in low prior knowledge students. Fifty-five college freshmen received an inquiry task in an unfamiliar domain and were randomly assigned to a condition in which domain information was available before and during the task, before the task, or not at all. Students in the first two conditions exhibited more hypothesis-driven behavior and acquired more knowledge than students without access to domain information. The comparison among the two conditions with domain information yielded similar results in favor of the before and during condition. Together these findings confirm the predicted superiority of the before-plus-during format. 相似文献
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