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Abstract: Developing student interest is critical to supporting student learning in computer science. Research indicates that student interest is a key predictor of persistence and achievement. While there is a growing body of work on developing computing identities for diverse students, little research focuses on early exposure to develop multilingual students’ interest in computing. These students represent one of the fastest growing populations in the US, yet they are dramatically underrepresented in computer science education. This study examines identity development of upper elementary multilingual students as they engage in a year-long computational thinking curriculum, and follows their engagement across multiple settings (i.e., school, club, home, community). Findings from pre- and -post surveys of identity showed significant differences favoring students’ experiences with computer science, their perceptions of computer science, their perceptions of themselves as computer scientists, and their family support for computer science. Findings from follow-up interviews and prior research suggest that tailored instruction provides opportunities for connections to out-of-school learning environments with friends and family that may shift students’ perceptions of their abilities to pursue computer science and persist when encountering challenges. 

As reliance on technology increases in practically every aspect of life, all students deserve the opportunity to learn to think computationally from early in their educational experience. To support the kinds of computer science curriculum and instruction that makes this possible, there is an urgent need to develop and validate computational thinking (CT) assessments for elementary-aged students. We developed the Assessment of Computing for Elementary Students (ACES) to measure the CT concepts of loops and sequences for students in grades 3-5. The ACES includes block-based coding questions as well as non-programming, Bebras-style questions. We conducted cognitive interviews to understand student perspectives while taking the ACES. We piloted the assessment with 57 4th grade students who had completed a CT curriculum. Preliminary analyses indicate acceptable reliability and appropriate difficulty and discrimination among assessment items. The significance of this paper is to present a new CT measure for upper elementary students and to share its intentional development process. 

Collective impact is an approach for solving complex social problems at scale. The challenge of broadening participation in computing (BPC) is one such problem. The complexity of BPC is compounded by the decentralized nature of public education, where decisions are made primarily at the state level and subject to interpretation at the district level. As such, diversifying computer science (CS) pathways across the nation requires a systemic approach such as collective impact to engage all of the stakeholders who influence CS education and whose decisions can either facilitate or hinder BPC efforts. This experience report discusses how the collective impact framework has been used to advance the work of the Expanding Computing Education Pathways (ECEP) Alliance, an NSF funded BPC Alliance focused on states and state policy as the unit of change. We discuss how the five essential features of collective impact (common agenda, shared measurement, mutually reinforcing activities, continuous communication, and backbone support) coalesce to facilitate ECEP's theory of change. The report highlights specific policy changes that ECEP states have addressed to promote BPC, the flipped accountability that results from a non-hierarchical leadership model, and the challenges of measuring systemic changes as an intermediary to BPC. 

Computer science education has been making dramatic increases in recent years. Across the US, different states are advancing computer science education through different policies. However, as a state makes choices to advance computer science education, it is critical to consider how these policies will broaden participation in computing (BPC). Many have indicated that only white and Asian males (who make up 30% of our population) currently have the opportunity/privilege to engage in computer science education. Therefore, as we implement state-level computer science education reform, it is critical that BPC remains as our guiding principle. Expanding Computing Education Pathways (ECEP) was created as an NSF national alliance to support state-level educational reform with regards to computer science. Over the past 6 years, this alliance of 22 states and Puerto Rico have worked together to share policies to advance BPC in each state. Through these experiences, ECEP has proposed that state change related to CS educational reform follows five stages: (1) Find your leader(s) and change agents; (2) understand the CS education landscape and identify the key issues/policies; (3) gather and organize your allies to establish goals and develop strategic plans and; (4) get initial funding to support change and; (5) building and utilizing data infrastructure that informs strategic BPC efforts. This study examined the ECEP alliance and the five-stage model through the 25,000+ documents and data sources over the past decade, specifically investigating how these five stages impacted states’ overall BPC efforts. Results indicated that these 5 stages seemed to support states’ BPC efforts.

 

Effective and equitable CS teaching in classrooms is contingent on teachers' high-levels of self-efficacy in CS as well as a robust understanding of equity issues in CS classrooms. To this end, our study examined the influence of a professional development (PD) course, Teaching Exploring Computer Science (TECS), on promoting teacher self-efficacy and equity awareness in CS education. This nine-week PD was offered in a hybrid format, delivering on-line and face-to-face classes to high school teachers across various disciplines who served under-represented students. The participants completed a selfefficacy survey focusing on their ability to teach ECS, both before and after the course. Results showed that teachers' selfefficacy in the content knowledge and pedagogical knowledge of ECS significantly increased as a result of taking the course. We also evaluated teacher's understanding of the equity issues by conducting a content analysis of their reflection essays written at the end of the course. Four major themes emerged from the content analysis, highlighting the impact of equitable practices on CS participation. This research demonstrates the role of a professional development course in promoting teachers' self-efficacy beliefs in teaching CS and their understanding of the equity issues and presents tools for assessing teachers' development in these areas.