Process planning is a central, knowledge extensive and important activity in a manufacturing company. During process planning, countless decisions are made, many times based upon the process planner´s tacit knowledge, based on years of experience. The knowledge gap between the expert and the novice is wide. Narrowing this gap, taking the novice towards becoming expert, is an objective of education. This paper presents a solution for model-based interactive learning of process planning, validated through application in master level production engineering courses.