
Navigation planning is an important meta-cognitive process for self-directed learning in hyperspace. However, it is hard for learners to accomplish it. The main issue addressed in this paper is how to develop navigation planning skill. This paper describes a cognitive apprenticeship approach to this issue, which enables learners to accumulate experiences of navigation planning process with cognitive tool. In particular, we propose a learner-adaptable scaffolding method, in which functions of the tool can be fadable according to their planning skill. The results of the case study suggest that it allows learners to fade functions of the cognitive tool to develop their navigation planning skill.