摘要:Coding and computational thinking have recently become compulsory skills in many
school systems globally. Teaching these new skills presents a challenge for many teachers. A
notable example of professional development designed using Constructionist principles to address
this challenge is ScratchEd. Upon reflecting on her experiences designing and running ScratchEd,
Karen Brennan identified five tensions faced by professional development providers, and proposed
that these tensions could be used for scrutinising and critiquing professional development.
In this paper we analyse, through the lens of Brennan’s tensions, the process we have followed to
design, evaluate and improve professional development. We argue that while we have experienced
the same tensions, the extent to which we assess learning is a new tension that extends those identified
by Brennan. There are strong reasons to assess teachers’ knowledge, however, quantitative measures
of learning could be at odds with Constructionism: as Papert argued in Mindstorms, constructionist
educators should study their learning environments as anthropologists. Consequently, we have
called this new tension the tension between anthropology and assessment.
关键词:teacher professional development; Constructionism; computational thinking; programming;
pedagogical content knowledge;