Optical Pulsars and Black Arrows: Discoveries as Occasioned Productions

The current paper represents a methodological proposal. It seeks to address the question of how one might recognize a discovery as a discovery without knowing in advance what is available to be discovered. We propose a solution and demonstrate it using data from a study previously reported by Roschelle (1992). Roschelle investigated two students’ discovery of certain abstract features of Newtonian mechanics while working within a computer-based microworld, the Envisioning Machine. We employ an approach we term discovery-as-occasioned-production to re-examine his data. Such an approach proceeds stepwise from the identification of some matter discovered, working backwards to see just where that matter entered the conversation and, then, finally, tracing from that point forward to illuminate how the proposal for a possible discovery was ultimately transformed into a discovery achieved. The notion of “evident vagueness,” borrowed from Garfinkel, Lynch, and Livingston’s (1981) account of the discovery of an optical pulsar, emerges as an important feature of our analysis. Following Garfinkel (2002), we present our findings as a “tutorial problem” and offer a suggestion for how a program of practice studies in the learning sciences might be pursued

What are we missing? Usability’s Indexical Ground

In this paper, we describe how usability provides the indexical ground upon which design work in a surgery is achieved. Indexical and deictic referential practices are used 1) to constitute participation frameworks and work sites in an instructional surgery and 2) to encode and manage participants’ differential access to the relevancies and background knowledge required for the achievement of a successful surgical outcome. As a site for both learning and work, the operating room afforded us the opportunity to examine how usability, which is a critical design consideration, can be used as a resource for learning in interaction. In our detailed analysis of the interaction among participants (both co-present and projected) we sought to describe a particular case of how usability was produced as a relevant consideration for surgical education in the operating room. In doing so, we demonstrate a set of members’ methods by which actors worked to establish and provide for the relevance of the anticipated needs of projected users as part of developing an understanding of their current activity

Interaction & learning in chat environments: A workshop with data sessions

Workshop paper presented at the International Conference of the Learning Sciences, ICLS 2006, Bloomington, IN. Retrieved July 18, 2007 from http://www.cis.drexel.edu/faculty/gerry/pub/icls2006chat.pdf.Research groups around the world are using approaches inspired by Conversation Analysis to explore the processes of sense-making peculiar to textual exchanges mediated by chat technology. Such Chat Analysis allows researchers to observe the opportunities for and barriers to collaborative learning created by chat environments with various functionality. This day-long workshop will consist primarily of group data sessions analyzing chat logs, but will also consider theoretical and methodological implications for the study of computer support in the learning sciences

A State Policymakers' Guide to Federal Health Reform: Part I: Anticipating How Federal Health Reform Will Affect State Roles

Examines how federal healthcare reform will affect states' tools and roles in connecting people to services, promoting coordination and integration, improving care for those with complex needs, being results-oriented, and increasing efficiencies

Formulating the Triangle of Doom

Considerable attention has been paid in the CA literature to the glossing practices through which participants in conversation formulate who they are, what they are talking about, where the things they are talking about are located, and so forth. There are, of course, gestural glossing practices as well. For any concept or category presented gesturally, however, there is a range of possibilities from which a particular formulation may be adopted on any actual occasion of use. Identifying alternative formulations serves as a useful analytic exercise for exploring the pragmatic consequences of a produced gesture. In our own research, we have been studying the practices through which surgeons provide instruction while performing surgeries in a teaching hospital. We describe here a particular anatomy lesson produced during a surgery. The attending surgeon uses his hands and arms to gesturally construct a representation of a specific anatomic region (“the Triangle of Doom”) for the benefit of two medical students viewing and participating in the surgery. Employing the structure of Schegloff’s analysis of place formulations, we conduct an analysis of the attending’s gestural formulation. We will show how analyzing a particular gesture in this way illuminates both the intricate ways in which the gesture is tied to its context of production and the exquisite specificity of the gesture itself

Analyzing the organization of collaborative math problem-solving in online chats using statistics and conversation analysis

Paper presented at the 2005 CRIWG International Workshop on Groupware, Racife, Brazil. Retrieved July 18, 2007 from http://www.cis.drexel.edu/faculty/gerry/pub/criwg2005zemel.pdf.In this paper we describe how a statistical test on a hypothesis regarding collaborative math problem solving using online chats showed an unexpected result, whose understanding required the use of qualitative methods. The phenomenon behind the result is identified using Conversation Analysis. This paper demonstrates the importance of using qualitative methods to describe the perspective of participants as a way of interpreting statistical results, revising hypotheses and developing alternative coding schemes and procedures. The combined approach of quantitative and qualitative methods is applied on real data coming from Virtual Math Teams research project (Drexel University) and is identifying issues not addressed so far in the analysis of online collaborative group activity