Boundary Transitions Within, Across, and Beyond a Set of Digital Resources: Brokering in College Algebra

Boundary Transitions Within, Across, and Beyond a Set of Digital Resources: Brokering in College Algebra
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一组数字资源之内、之间和之外的边界转换:大学代数中的经纪

DOI:
10.1007/s40751-022-00113-2
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发表时间:
2022
期刊:
Digital Experiences in Mathematics Education
影响因子:
--
通讯作者:
Bechtold, Livvia
Bechtold, Livvia
中科院分区:
--
文献类型:
--
作者:
Johnson, Heather Lynn;Olson, Gary;Tsinnajinnie, Belin;Bechtold, Livvia

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我们通过结合新颖的数字资源(“技术活动”)以及教师学习社区(FLC)的干预措施,解决了促进早期本科数学课程教学转型的问题。技术活动可以作为边界对象,以便在教师所属的不同社区之间架起桥梁。借助艾蒂安·温格(Etienne Wenger)的实践社区理论,我们将教师的角色理论化为经纪人,促进一组数字资源内部、之间和之外的“边界过渡”。我们所说的“边界过渡”是指一种过渡,同时也是一种经纪行动;当教师在教学中的项目之间建立联系时,他们将不同的社区联系起来。为了支持我们的论点,我们提供了来自讲师 Rachel 的经验证据,她的边界转换具有三个功能:(1)将技术活动定位为课堂社区中重要的东西,并与更广泛的数学社区所重视的主题联系起来; (2) 向学生传达这样的信息:他们的推理比他们是否提供正确答案更重要,这是 FLC 提倡的做法; (3) 将学生的反应与 FLC 中讨论的数学思想联系起来,其中图表表示变量之间的关系。教师的边界转变可以使现有课程中的新颖数字资源合法化,从而挑战技能和程序可能优先于推理和意义建构的课程现状。
We address a problem of promoting instructional transformation in early undergraduate mathematics courses, via an intervention incorporating novel digital resources (“techtivities”), in conjunction with a faculty learning community (FLC). The techtivities can serve as boundary objects, in order to bridge different communities to which instructors belong. Appealing to Etienne Wenger’s Communities of Practice theory, we theorise a role of the instructor as a broker, facilitating “boundary transitions” within, across, and beyond a set of digital resources. By “boundary transition”, we mean a transition that is also a brokering move; instructors connect different communities as they draw links between items in their instruction. To ground our argument, we provide empirical evidence from an instructor, Rachel, whose boundary transitions served three functions: (1) to position the techtivities as something that count in the classroom community and connect to topics valued by the broader mathematics community; (2) to communicate to students that their reasoning matters more than whether they provide a correct answer, a practice promoted in the FLC; (3) to connect students’ responses to mathematical ideas discussed in the FLC, in which graphs represent a relationship between variables. Instructors’ boundary transitions can serve to legitimise novel digital resources within an existing course and thereby challenge thestatus quoin courses where skills and procedures may take precedence over reasoning and sense-making.
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