Learning laparoscopic surgery skills using a simulator board is one of the new acquired teaching methods. This work seeks an evaluation method to assess, by objective means, the development of psychometric skills during a simulated workshop with biological pieces. During a 2-month period, 15 students from an endoscopic surgery seminar were evaluated using a simulator board with the objective to assess four specific skills: object mobilization, cutting pattern, sutures and intracorporeal knots. Eight practice procedures with biological pieces were performed in the simulator. Time and precision were measured in the four assignments. Students improved significantly in object mobilization (p = 0.02), precision in cutting pattern (p < 0.01) and suture (p = 0.02), and time and precision to realize intracorporeal knots (p < 0.01). This method allows the objective evaluation of the degree of development of surgical skills using a simulator board. It is inexpensive and easy to perform, which makes it useful for other institutions.