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#WhatsTheDifference? Comparing Hashtag Conversation on Twitter among Teachers
Martin Rehm, Annabell Preußler, Michael Kerres, Katerina Bohle Carbonell,
Ad NottenAECT 2014, Jacksonville (Florida), USA
continuous professional development of teachers is a pivotal element in the provision of high quality
education (e.g. Hokka & Etelapelto, 2013)
fostered while collaborating in social networks composed of diverse groups of people
(Paavola, Lipponen, & Hakkarainen, 2004)
Networks of Practice (NoP)
“a larger, loosely knit, geographically distributed group of individuals engaged in a shared practice”
(Wasko & Faraj. 2005. p. 37)
• light-weight tool for easy communication that enables users to share information
• by encouraging shorter posts, it lowers potential time investment and thought processes for content generation
• frequency of updates increasesJava et al (2007)
“most teachers […] are accustomed to designing teaching activities in isolation […], which, in turn, prevents knowledge externalization and sharing.” (Hou, Sung, & Chang, 2009, p. 101)
Research Question
Does a Twitter Conversation contribute to a Network of Practice
(NoP) among Teachers?
#educhat
• topics cover different aspects of teaching practice
• started out as a synchronous Twitter event (North America)
#acps
• Abemarle county public schools teachers
• part of their professional development program
Social Network Analysis (SNA)
• valuable tool to understand underlying (social) processes within (learning) networks (de Laat, Lally, Lipponen, & Simons, 2007)
• discover prominent individuals and/ or groups– Ego-network
• identify clusters of „like-minded“ individuals – Whole network
unveil the social fabric that enables learning
Data collected: 22.05. – 28.07.2014
• #educhat– Users: 2095– Tweets: 3884
• #acps– Users: 510– Tweets: 1271
Method
i. Users metrics– Tweets, Mentions, Replies to, Followers, Followed
ii. Social Network Analysis – Degree, Betweeness, Cluster
iii. Semantic Network Analysis– Top-100 Hashtag Pairs, 2-Mode Network (Users-
Hashtags)
Clustering Algortihm: Louvain Method (Single Refinement)Layout: Kamada-Kawai (Optimize Inside Clusters)
Nodes: Overall Degree
Social Network Analysis
#acps#educhat
• Networks of Practice (NoP)– Yes: “larger, loosely knit […], geographically distributed
group of individuals engaged in a shared practice” (Wasko & Faraj. 2005. p. 37)
• Network Characteristics– “homophiliy”, structural holes & bridges
– different „strategies“ for different circumstances
– ontology/categorization, shared code