We present a proposal of laboratory experience as a method for knowledge construction related to Newton's Law of Inertia. The search for tools that allow students to improve their ability to elaborate knowledge from situations debate their ideas and feedback with their teachers has allowed finding in the laboratory sessions a precise scenario for the situations previously raised. The essence of the laboratory has changed, not only because technology has evolved but because is changing the way it is used for teaching physics. It is now spoken of laboratory practice and laboratory experience, where the first would be framed by steps series that allow the student to reach conclusions of work that have already been done by means of measurements that most likely can already find in the network, in the laboratory experience, must take into account work phases that the student can define, together with his teacher and peers, through analysis, debate, creation, etc.