Despite many years of research in CSCL, computers are still scarcely used in classrooms today. One reason for this is that the constraints of the classroom environment are neglected by designers. In this contribution, we present a CSCL environment designed for a classroom usage from the start. The system, called TapaCarp, is based on a tangible user interface (TUI) and was designed to help train carpenter apprentices. A previous study (Cuendet and Dillenbourg 2013) showed that the tangible nature of TapaCarp helped integrate it in the classroom environment, but that this did not guarantee a meaningful learning activity. In this article, we describe the process that led us to design a new learning classroom activity for the particular context of dual carpentry apprenticeships. One innovative aspect of the activity is that TapaCarp is used only for a small part of it. This contrasts with the mainstream CSCL approach that assumes that the system must be used from beginning to end of the activity. This new activity was used in a classroom study with 3 classes of carpenter apprentices over two days for each class. Despite its many steps, the activity proved usable and fostered many connections to the workplace, which was one of its main purposes. The teacher and the students were positive and showed high engagement in the activity. The learning gain results were mixed: the performance of the students improved from day 1 to Sébastien Cuendet
Background: Spatial skills are crucial for carpentry and are a major learning objective in the initial vocational training of carpenter apprentices. Carpenters specifically need to develop the capability to switch between two-dimensional (2D) and three-dimensional (3D) representations. Previous studies have explored spatial skills, but never in the context of vocational education and training (VET). This study sheds light on the level and evolution of spatial skills in the initial vocational training of carpenter apprentices in Switzerland. Methods: In this study, 726 subjects (98 females) who were either carpenter apprentices, apprentices of another profession, or high school students, took a test on spatial skills with three parts: mental rotation, paper folding, and orthographic projections. The first two parts are widely used tests for spatial skills, while the last one was specifically designed to address the 2D-3D transition that is a core skill of carpenters. Results: Carpenter apprentices do have higher spatial skills than would be expected given their general school level. In particular, their spatial skills were found to be similar to those of high school students and superior to those of apprentices of another profession. Carpenters' spatial skills improve over the course of their apprenticeship. These findings confirm that spatial skills are trainable and suggest that the high spatial skills level of carpenter apprentices is due to a selection bias as well as to the training that they receive during their apprenticeship. Conclusions: Carpenter apprentices improve their spatial skills over the time of their initial vocational training. As spatial skills are crucial in this profession, there is a need to develop further solutions that encourage further improvement of teaching and learning activities for spatial skills.
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