Squeak, an Invisible Laboratory for Teachers as Learners

In this paper we highlight the empowerment of fresh developers challenged to create their own virtual laboratories of learning in Squeak's World. We suggested to a large group of teachers, from all school levels in Portugal, the use of Squeak as a multimedia system, an interface development environment, or simply as a programming language, in order to create new virtual worlds or simulated environments. They were challenged to exploit such a tool, knowing that school and schooling are fine, assuming that we aim to make it better, even if we do not always know what that means.