The PBL (Problem-Based Learning) methodology provides many advantages to those adopting it in the teaching-learning process. To this end, a good planning that guides the usage of the methodology towards the goals established by the teacher is of fundamental importance, in order to prevent fundamental aspects to be neglected or forgotten. However, there is a lack of specific solutions to help teachers plan their teaching. This is even more pronounced in the specific case of PBL. As a solution to this problem, this paper proposes a tool composed of a PBL Canvas and a set of cards, used to guide the teaching planning in the PBL approach, called PBL Planner Toolkit. The initial results indicate a good acceptance of the tool as well as evidences of its effectiveness in the planning of the adoption of the PBL, elicited through the realization of real plans of 4 courses using the PBL Planner Toolkit. The data collection was done by means of the evaluation of the course plans and by observations recorded in the logbook made during the realization of the plans.