ABSTRACT Mathematics educators are engaging in an online community referred to as the Math Twitter Blogosphere (MTBoS) to support their practices. Although studies indicate that educators who participate in professional online communities engage primarily in sharing and consuming resources, and in some cases also in building and maintaining professional relationships, it is unclear how they interpret these opportunities. This study explores the community building activities mathematics educators refer to when speaking about their engagement in the MTBoS and unpacks ways in which they value and establish value in the activities they refer to. Findings indicate that members of the MTBoS community refer to identifying and selecting resources frequently, that they value resources that are inspiring, relevant, and reliable, and that they establish values through identifying resources with attributes of specificity, like-mindedness, credibility, and through repeated exposure over time.

中文翻译：

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MTBoS中的社区建设：数学教育者通过在线从业者社区交换的资源建立价值

摘要数学教育工作者正在加入一个称为Math Twitter Blogosphere（MTBoS）的在线社区，以支持他们的实践。尽管研究表明，参与专业在线社区的教育者主要参与共享和消耗资源，在某些情况下还参与建立和维护专业关系，但不清楚他们如何解释这些机会。这项研究探索了数学教育者在谈论他们参与MTBoS时所参考的社区建设活动，并揭示了他们在所参考的活动中重视和建立价值的方式。调查结果表明，MTBoS社区成员经常提及识别和选择资源，他们珍视具有启发性，相关性和可靠性的资源，