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Learning computer science (CS) is increasingly becoming a necessary component of K–12 education, but in most cases, teachers do not have either the essential knowledge to teach or a curriculum to follow. In this article, we analyze the outcomes from a yearlong, blended professional development (PD) program to teach teachers game design and coding skills, and we codevelop a middle school curriculum. Using a mixed-methods design, this study presents the findings as we investigate how teachers experienced the PD program. Our findings show that the teachers’ level of engagement differed for various reasons, such as challenges related to time, motivation, and interest. We identified a high-engagement group who developed a deep understanding of coding knowledge and engaged in the PD activities more. We also identified a low-engagement group who failed to attend most activities despite mentioning generic interests. We provide an explanation why these teachers might have varied in terms of their engagement and offer how “data” can be used to predict engagement levels and as a diagnostic tool (e.g., lacked specificity in explaining CS concepts in reflections). We recommend add- ing motivational strategies and better tracking and monitoring mechanisms for better engagement and PD design considerations for online and blended learning for teachers. 

Interest influences adults’ and young learners’ learning in formal and informal contexts. Although interest and interest development frameworks have been used in research on student-learning, they are not used in teacher-focused research, especially as “outcomes” of teacher professional development (PD) activities. In this study, we used interest development as the outcome of PD in computer science (CS) and investigated the factors that influenced teachers’ (n = 5) interest development toward CS using various data sources and analysis methods. We found that interest development is (a) varied, (b) influenced by self-relation, knowledge, and affect, (c) associated with reengagement with PD activities, and (d) it can be captured using computational text analysis methods and online log data. 

Teacher self-efficacy (SE) has been observed to be an 'important construct for Computer Science (CS) teachers' professional development because it can predict both teaching behaviors as well as student outcomes" [1]. The purpose of the present study was to investigate teacher CS SE during a two-year federally funded professional development (PD) and curriculum development project for middle school teachers incorporating game-design and the Unity development platform. The research question investigated is: How does teacher self-efficacy for teaching computer science via game design with the Unity game development platform change during a year-long PD program? Investigations of teacher SE for teaching CS have resulted in some surprising results. For example, it has been reported that - There were no differences in self-efficacy based on teachers' overall level of experience, despite previous findings that teacher self-efficacy is related to amount of experience" and "no differences in self-efficacy related to the teachers' own level of experience with CS" [2], thus further study of CS teacher SE is warranted. Participants in this study were six middle school teachers from four middle schools in the southeastern United States. They participated in a year-long PD program learning the Unity game development platform, elements of game design, and foundations of learner motivation. Guided reflective journaling was used to track the teachers' SE during the first year of the project. Teachers completed journal prompts at four intervals. Prompts consisted of questions like "How do you currently feel about your ability to facilitate student learning with Unity?" and "Are you confident that you can implement the materials the way the project team has planned for them to be implemented?" Prior to beginning the project participants expressed confidence in being able to facilitate student learning after participating in the planned professional development, but there was some uneasiness about learning and using Unity. From a SE perspective their responses make sense, as all of the participants are experienced teachers and should have confidence in their general ability to teach. However, since Unity is a new programming environment for all of the teachers, they did not have the prior experience necessary to have a high degree of confidence that they could successfully use it with their students.