Problem solving is an important skill in the knowledge economy. Research indicates that the development of problem solving
skills works better in the context of instructional approaches centered on real-world problems. But students need scaffolding
to be successful in such instruction. In this paper I present a conceptual framework for understanding the effects of scaffolding.
First, I discuss the ultimate goal of scaffolding—the transfer of responsibility—and one way that scholars have conceptualized
promoting this outcome (fading). Next, I describe an alternative way to conceptualize transfer of responsibility through the
lens of distributed cognition and discuss how this lens informs how to promote transfer of responsibility. Then I propose
guidelines for the creation of problem solving scaffolds to support transfer of responsibility and discuss them in light of
the literature. 相似文献
In this article, we report on a study of beliefs about mathematics, teaching, and proof conducted with six prospective secondary
mathematics teachers as they completed a two-semester sequence of a content course and a methods course. The initial beliefs
of the participants were identified using interview and survey data, and potential shifts in beliefs were examined through
further interview and survey data combined with classroom observations and written work. While their beliefs about mathematics
and proof appeared to be relatively stable, their beliefs about teaching shifted from a more teacher-centered view to beliefs
that foreground the activities and understandings of the students. These shifts are analyzed using the construct of belief
structures, and activities and events from the courses that may have facilitated the shifts are identified. The results are
consistent with the literature in some respects, such as the stability of the participants’ beliefs about mathematics. On
the other hand, our results present new information about how prospective secondary mathematics teachers’ beliefs about teaching
may be impacted. 相似文献
This study examines the changes in teaching practices during the implementation of a pedagogical model called the mathematics
reasoning approach (MRA), which was founded on 2 critical areas in mathematics, problem solving, and writing to learn. Three
algebra teachers implemented the approach with their classes, which were divided into control (traditional) and treatment
(student-centered approach) groups, with their levels of implementation measured by the Reformed Teaching Observation Protocol
(RTOP) instrument. The implementation of the model resulted in positive changes in teachers’ pedagogical practices and yet
showed the struggles they faced. In the control classes (traditional classes), the level of teaching remained the same throughout
the study, whereas in the treatment classes (MRA classes), a significant improvement in the level of teaching was observed.
Even though the teachers’ implementation levels differed from each other, the patterns of the change for all 3 teachers showed
similarities; that is, their MRA teaching level was initially equivalent to their control teaching, but as the semester progress,
there was a separation between the 2 approaches. This separation between the 2 approaches appeared to be dependent upon the
pedagogical area on which the teacher put emphasis. The skill of questioning seemed to be 1 which each teacher first changed. 相似文献
Brian Merrick bas made a major contribution to the development of poetry teaching for younger children in the United Kingdom during the 1980s. CLE invited bim to look back over the decade and to select a personal list of favorite collections.ForCLE he has written on Poetry in Performance (issue 35) and Charles Causley (issue 70). The latter article was expanded intoTalking with Charles Causley for the National Association for the Teaching of English (1989). NATE has also published his influentialExploring Poetry: 5–8 (1987) andExploring Poetry: 8–13 (1990). 相似文献
Is it possible to educate a fire officer to deal intelligently with the command and control of a major fire event he will never have experienced? The authors of this paper believe there is, and present here just one solution to this training challenge. It involves the development of an intelligent simulation based upon computer managed interactive media. The expertise and content underpinning this educational development was provided by the West Midlands Fire Service. Their brief for this training programme was unambiguous and to the point:
1 Do not present the trainee with a model answer, because there are no generic fires. Each incident is novel, complex, and often ‘wicked’ in that it changes obstructively as it progresses. Thus firefighting demands that Commanders impose their individual intelligence on each problem to solve it.
2 A suitable Educational Simulator should stand alone; operate in real time; emulate as nearly as possible the ‘feel’ of the fireground; present realistic fire progress; incorporate the vast majority of those resources normally present at a real incident; bombard the trainee with information from those sources; provide as few system‐prompts as possible.
3 There should also be an interrogable visual debrief which can be used after the exercise to give the trainees a firm understanding of the effects of their actions. This allows them to draw their own conclusions of their command effectiveness. Additionally, such a record of command and control will be an ideal initiator of tutorial discussion.
4 The simulation should be realisable on a hardware/software platform of £10 000.
5 The overriding importance is that the simulation should ‘emulate as nearly as possible the feelings and stresses of the command role’.
Building from the classic Wisconsin model of status attainment, this study examines whether a specific style of parenting, concerted cultivation, and a close friend’s school-related attitudes and behaviors mediate the relationship between a family’s socioeconomic status and their child’s academic achievement in the United States. Using a recursive path model on nationally representative panel data of high school students (N = 10,350), the results confirm a direct association between socioeconomic status and concerted cultivation. In addition, concerted cultivation and close friends are shown to mediate the relationship between a family’s socioeconomic status and their child’s academic achievement. 相似文献
Rater‐mediated assessments are a common methodology for measuring persons, investigating rater behavior, and/or defining latent constructs. The purpose of this article is to provide a pedagogical framework for examining rater variability in the context of rater‐mediated assessments using three distinct models. The first model is the observation model, which includes ecological/environmental considerations for the evaluation system. The second model is the measurement model, which includes the transformation of observed, rater response data to linear measures using a measurement model with specific requirements of rater‐invariant measurement in order to examine raters’ construct‐relevant variability stemming from the evaluative system. The third model is the interaction model, which includes an interaction parameter to allow for the investigation into raters’ systematic, construct‐irrelevant variability stemming from the evaluative system. Implications for measurement outcomes and validity are discussed. 相似文献
The purpose of this study was to investigate the role textbooks can play on writing complexity and lexical density as a proxy for critical thinking and ultimately learning, in relation to argumentative and summative writing when integrated with a virtual reality experience. In this study, differences in writing complexity and lexical density scores were measured across four different pedagogical modalities: VR alone, VR followed by textbook readings, textbook readings followed by VR, and textbook readings alone. Adult students, recruited from non-science-based higher education programs, responded to two prompts related to content found in the VR environments and discussed in the textbooks. The authors hypothesized that exposure to a virtual marine environment prior to responding to the writing prompts would enhance both argumentative and summative writing products, when compared to participants who only had access to the textbook experiences. Participants who were exposed to the VR environment then a textbook demonstrated significantly greater writing complexity and lexical density scores than those who had access to VR alone, or access to the text alone.