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The study examines geometry teachers' video club discussions in a two-year professional development intervention that combined lesson study, video clubs, and animation discussions to promote teacher noticing of students' prior knowledge. Most discussions pertained to student conceptions (78%), followed by pedagogy (19%). Discussion of students' prior knowledge surfaced only when talking about student conceptions or pedagogy.

Many organizations are seeking to address the need for greater numbers of computer scientists in the US, and in particular, more women and underrepresented minorities. It is not uncommon to develop curriculum that relies heavily on cutting edge technology and computing tools designed to make computing more compelling. Many curriculum developers are seeking to promote creativity as a part of computing, and often do so using STEAM (science, technology, engineering, arts, and mathematics) based interventions where the arts play a prominent role in the classroom.

González, G. (2018). Moving toward approximations of practice in teacher professional development: Learning to summarize a problem-based lesson. In R. Zazkis, & P. Herbst (Eds.), Scripting approaches in mathematics education: Mathematical dialogues in research and practice (pp. 115–146). New York, NY: Springer.

Co-located collaborative live coding is a potential approach to network music and to the music improvisation practice known as live coding. A common strategy to support communication between live coders and the audience is the use of a chat window. However, paying attention to simultaneous multi-user actions, such as chat texts and code, can be too demanding to follow. In this paper, we explore collaborative music live coding (CMLC) using the live coding environment and pedagogical tool EarSketch.

McKlin, T., Magerko, B., Lee, T., Wanzer, D., Edwards, D., & Freeman, J. (2018). Authenticity and personal creativity: How EarSketch affects student persistence. In Proceedings of the 49th ACM Technical Symposium on Computer Science Education (SIGCSE 2018). New York, NY: ACM Publications.

Marcum-Dietrich, N., Kerlin, S., Staudt, C., & Daniels, M. (2018). Our watershed. The Science Teacher, 85(2).

Marcum-Dietrich, N., Kerlin, S., Staudt, C., & Daniels, M. (2018). Our watershed. The Science Teacher, 85(2).

Marcum-Dietrich, N., Kerlin, S., Staudt, C., & Daniels, M. (2018). Our watershed. The Science Teacher, 85(2).

The theory of realistic mathematics education establishes that framing mathematics problems in realistic contexts can provide opportunities for guided reinvention. Using data from a study group, I examine geometry teachers' perspectives regarding realistic contexts during a lesson study cycle. I ask the following. (a) What are the participants' perspectives regarding realistic contexts that elicit students' prior knowledge? (b) How are the participants' perspectives of realistic contexts related to teachers' instructional obligations?