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arXiv 0809.1081physics.ed-ph
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情境丰富、多面性问题对学生问题解决态度的影响

Impact of Context-Rich, Multifaceted Problems on Students' Attitudes Towards Problem-Solving

C. A. Ogilvie

摘要:

大多数学生在面对复杂和结构不良的任务时会感到挣扎,因为学校和大学教授的策略只是要求找到并应用正确的公式或策略来回答结构良好的算法问题。对于学生来说,要培养解决结构不良问题的能力,他们首先必须相信标准化的程序方法并不总是足以解决结构不良的工程和科学挑战。在本文中,我们记录了大学生对问题解决的信念范围。参加物理课程的学生在课程开始和结束时都提交了关于他们如何解决问题的书面反思。我们对其中大约500个反映进行了编码,以确定不同的问题解决方法。在学期开始时,超过50%的学生在书面反思中提到他们使用Rolodex方程匹配,即他们通过搜索具有与已知和未知相同变量的方程来解决问题。然后,我们描述了在何种程度上,学生的信念物理问题解决的变化,由于他们的经验,在整个学期的上下文丰富,多方面的问题。到学期结束时,诸如Rolodex方法之类的策略的使用频率只会略有下降。然而,在他们的反思中描述更广泛的策略的学生有所增加。特别是在描述图表的使用方面有了很大的增长,并且首先考虑概念。因此,使用上下文丰富,多方面的问题,积极影响学生解决问题的态度。

英文摘要:

Most students struggle when faced with complex and ill-structured tasks because the strategies taught in schools and universities simply require finding and applying the correct formulae or strategy to answer well-structured, algorithmic problems. For students to develop their ability to solve ill-structured problems, they must first believe that standardized procedural approaches will not always be sufficient for solving ill-structured engineering and scientific challenges. In this paper we document the range of beliefs university students have about problem-solving. Students enrolled in a physics course submitted a written reflection both at the start and the end of the course on how they solve problems. We coded approximately 500 of these reflections for the presence of different problem-solving approaches. At the start of the semester over 50% of the students mention in written reflections that they use Rolodex equation matching, i.e. they solve problems by searching for equations that have the same variables as the knowns and unknowns. We then describe the extent to which students' beliefs about physics problem-solving change due to their experience throughout a semester with context-rich, multifaceted problems. The frequency of strategies such as the Rolodex method reduces only slightly by the end of the semester. However, there is an increase in students describing more expansive strategies within their reflections. In particular there is a large increase in describing the use of diagrams, and thinking about concepts first. Hence the use of context-rich, multi-faceted problems positively impacts students' attitude towards problem-solving.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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