Class begins with a new teacher for the group, a guest teacher leads the class to make it different. the new teacher comes across a video that describes his profession and the different jobs he have had. the teacher begins the class by asking students to stand, walk as if they were atoms, say a number when he would meet students trying to have that amount of members, is repeated three or four times the action and the last number that mentions the teacher that will be the number of members to form some teams, he asked what do the students spect for this class and they say that to learn some strategie, some tecnic, etc. For the development of the class, the new teacher divides the group into two teams, the teacher projected a slide titled "thinking strategies and teamwork". It is a game about a strategy game to win and even two teams both teams work together for a better result. Each team had a chance to say red or blue, if a team chose blue and the other also, the two would obtain a point, if a team chose blue and the other chose red, which chose blue, the team chose blue lose a point and the team chose red win three points,  if the two teams chose red two would lose points. After the game the results of each team joined, the first team had more points tha the second team, if both teams have worked as a team they had earned more points together. Teamwork also means that one can get to know more deeply his teammates, knowing their capabilities, limitations, their thinking and face different situations.