This paper presents the results of the teaching strategy based in The Construction of Prototypes (TCP) and Project Based Learning (PrBL) which was applied in a course of mechanical for engineering students of two universities in Colombia ( Manuela Beltran University (MBU) and Colombian School of Engineering (CSE)) in 2010. The strategy focuses on three topics of Rotational Dynamics Teaching (RDT) specifically at centripetal force, Inertia moment and theorem de parallel axes and angular momentum conservation. Learning strategies were focused so that students build low cost prototypes let them to use the physical modeling, error theory and graphics analysis around the three topics mentioned. The strategy stimulate and increases the rotational dynamics learning and other learnings (graphical expression, oral and written expression). This research provides the theoretical framework which is based on active work and collaborative learning of the students. Likewise, the methodology described the analysis tools in depth that were used for the data collection process. We present qualitative analysis with hypothesis test (contrast for difference of means), besides of interviews applied to students. The paper presents strengths and difficulties of the strategy employed.