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Research about modeling emphasizes the importance of heterogeneity in science learning. At the same time, a growing body of scholarship seeks curricular pathways for epistemic and representational convergence. In response to this tension, we propose two constructs: heterogeneity-seeking curricula and commitments. Heterogeneity-seeking curricula emphasize generating and valuing multiple representations of phenomena, offering an image of science that foregrounds messy, nonlinear aspects of learning. Commitments parallel epistemic cognition research by focusing on values that shape students' modeling; however, rather than looking for disciplinary practices in students' modeling, commitments take students' values as a starting point, mapping them to disciplinary resources not typically foregrounded in science education. Using a lens of commitments, we analyze six implementations of a heterogeneity-seeking 6th grade modeling curriculum, and we compare the lens of commitments to the lens of epistemic ideals. Then, we show that, in this context, commitments functioned like epistemic ideals by acting as evaluative resources during modeling. However, commitments also extended beyond this role by helping students ask and explore questions that were not anticipated by the curriculum, problematizing a view of phenomena as objective and external to students' modeling work and showing them instead to be a production of the classroom's multidimensional modeling discourse.

In this paper, we emphasize the importance of looking beyond technology itself and including interactional and experiential elements in our research gaze in informal computing education in science museums. We argue that, in these contexts, facilitation can be understood as "design work" that is both complex and challenging. We identify how focusing on "infrastructuring"--the process by which an exhibit's support systems emerge, shift, and are sustained in practice--can help develop a richer understanding of the complexity of this work. In this study, we examine facilitators' experiences of facilitating and supporting a computational exhibit in a science museum. We identify how facilitators' expertise, roles, and responsibilities shape their facilitation work. Through analysis of video-recorded interactions at the exhibit and interviews with facilitators, we showcase how facilitators' in-the-moment design moves addressed breakdowns of the exhibit's infrastructure. These design moves emerged from the complex interaction of each facilitator's epistemological views of computing and museum education, values, past experiences, and disciplinary background, as well as the museum culture and other institutional constraints. This analysis represents an important challenge to technocentric stances in informal computing education with implications for informal educators and managers, as well as designers and design researchers more broadly.

Background: We outline a case for how the Learning Sciences is at a powerful inflection point where the "real world" needs to be seen as comprised of the political entities and processes in which learning happens. We seek to sharpen the principle that learning is political by elucidating historical and contemporary processes of European and U.S. imperialism that remain foundational to our field and by developing the argument that theories of learning are theories of society. Methods: Through a contrapuntal approach, which emphasizes a critical lens to analyze empire, we juxtapose notions of authentic practice in computing education with scholarship in sociology that brings the lives of tech industry immigrant workers to the fore. Findings: Our analysis reveals how the social construction of disciplinary and professional expertise in computing is intricately interwoven with historically persistent patterns of the appropriation of the lives and labor of "endarkened" people through systems of transnational migration and institutional forms of racial segregation. Contribution: A contrapuntal lens in the Learning Sciences prompts our field to embrace the necessary uncertainties and the theoretical and methodological possibilities that emerge when sites of learning and learning itself are recognized as political and as contestations of empire.

We have iteratively designed and researched five digital games focusing on Newtonian dynamics for middle school classrooms during the past seven years. The designs have evolved dramatically in terms of the roles and relationships of the formal representations, phenomenological representations, and control schemes. Phenomenological representations can be thought of as the "world" representations that depict the actual actions and motion of a game as they occur (i.e., the central representations in most recreational games). Formal representations highlight the disciplinary relationships of interest from a pedagogical perspective (such as vector arrows, graphs, and dot traces). Our initial design perspective focused on highlighting the formal physics relationships within popular game-play mechanics. This perspective prioritized a commitment to the phenomenological representations and controls of recreational games, specifically marble-genre games. We designed formal representations around and over the phenomenological representations of that genre. Over the next seven years, we navigated the tensions between the original recreational genre and creating a new genre situated within the formal representations themselves. More specifically, our designs evolved to situate the game-play squarely in the formal representations in terms of the controls as well as in terms of the communication of goals and challenges. We backgrounded phenomenological representations and streamlined visual complexity to focus on key relationships. Our discussion compares our design evolution to the "SimCalc" design evolution recounted in IJDL's recent special issue on historic design cases.

In recent years, the field of education has challenged researchers and practitioners to incorporate computing as an essential focus of K-12 STEM education. Integrating computing within K-12 STEM supports learners of all ages in codeveloping and using computational thinking in existing curricular contexts alongside practices essential for developing mathematical and scientific expertise. In this paper, we present findings from a design-based, microgenetic study in which an agent-based programming and computational modeling platform--ViMAP--was integrated with existing elementary science and math curricula through lessons co-designed and taught by the classroom teacher across a period of seven months. We present a dialogical re-positioning of coding, where disciplinarily grounded meanings of code emerge through the construction of computational utterances--i.e., computer models as well as complementary conversations and physical models that serve as mathematical and scientific explanations--through the use of socio-mathematical norms.

This paper situates a critical review of studies that we have conducted within the broader research literature to analyze the affordances of integrating modeling within disciplinarily-integrated games from computational thinking and science as practice perspectives. Across the studies, the analyses pursue two themes: (a) the role of agent-based modeling as a synergistic local practice around which we can integrate computational thinking and scientific modeling within digital games and (b) the role of collaboration in leveraging those synergies. We then present a design of a disciplinarily-integrated game that integrates these themes to demonstrate one such possible instantiation of the themes. Finally, we discuss the implications for design and praxis with a particular focus on learning in classrooms across the curriculum. Specifically, we first explore the implications in terms of connecting to teachers' views of practice by framing computational modeling and computational thinking as mathematization. We then explore the implications of shifting from a focus on single players to communities of practice in terms of computational participation as science as practice. We close by exploring the pragmatic and pedagogical affordances of shifting from stand-alone single-topic games to flexible agent-based environments in terms of student development across the curriculum.

Science, Technology, Engineering and Mathematics (STEM) education garnered significant attention in recent years and has emerged as a key field of research globally. The goal of this article is to offer a critical review of how STEM education and its transdisciplinarity were defined and/or positioned in empirical studies published during the early formulation of the field. In particular, we sought to identify how these studies conceptualise learners and learning and portray the underlying assumptions in light of the macrosystemic discourses that often serve as ideological forces in shaping research and practice of STEM education. We examined 154 peer-reviewed articles published between January 2007 and March 2018 and analysed them along several emergent dimensions: their geospatial focus, focal disciplinary areas, methodological and theoretical assumptions, and major findings. Grounded in a critical transdisciplinary perspective, we used critical discourse analysis to identify how macrosystemic and institutionalised forces -- overtly and implicitly -- shape what counts as STEM education research, including its goals and conceptualisations of learners and learning. Our analysis highlights the need for aesthetic expansion and diversification of STEM education research by challenging the disciplinary hegemonies and calls for reorienting the focus away from human capital discourse.

Studies of scientific practice demonstrate that the development of scientific models is an enactive and emergent process (e.g., Pickering 1995; Chandrasekharan and Nersessian 2017). Scientists make meaning through processes such as perspective taking, finding patterns, and following intuitions. In this paper, we focus on how a group of fourth grade learners and their teacher engaged in interpretation in ways that align with core ideas and practices in kinematics and computing. Cycles of measuring and modeling--including computer programming--helped to support classroom interactions that highlighted the interpretive nature of modeling and participation in model construction as a knowledge-building process. We draw on literature from the history and philosophy of science in order to analyze the students' interpretive actions as forms of epistemic and representational agency, constituting a construct we term "disciplined interpretation." We demonstrate how students' disciplined interpretative moves help to position them as owners of their own design decisions and their rights to interpret the phenomena they were modeling, data collected from those phenomena, and the scientific and computational models themselves. We present four extended episodes that characterize the nature of activity in the classroom and the development of students' disciplined interpretations in terms of learning to recognize scientific patterns amid complex perceptual fields, and to represent them in ways that support sensemaking.

In this article, we argue that when complex sociopolitical issues such as ethnocentrism and racial segregation are represented as complex, emergent systems using agent-based computational models (in short agent-based models or ABMs), discourse about these representations can disrupt social studies teacher candidates' dispositions of teaching social studies without engaging in critical conversations about race and power. Our study extends the literature on agent-based computing to the domain of social studies education, and demonstrates how preservice teachers' participation in agent-based modeling activities can help them adopt a more critical stance toward designing learning activities for their future classrooms.

Digital games can make unique and powerful contributions to K-12 science education, but much of that potential remains unrealized. Research evaluating games for learning still relies primarily on pre- and post-test data, which limits possible insights into more complex interactions between game design features, gameplay, and formal assessment. Therefore, a critical step forward involves developing rich representations for analyzing gameplay data. This paper leverages data mining techniques to model learning and performance, using a metadata markup language that relates game actions to concepts relevant to specific game contexts. We discuss results from a classroom study and identify potential relationships between students' planning/prediction behaviors observed across game levels and improvement on formal assessments. The results have implications for scaffolding specific activities, that include physics learning during gameplay, solution planning and effect prediction. Overall, the approach underscores the value of our contextualized approach to gameplay markup to facilitate data mining and discovery.