Since the previous session each student is asked to choose a historical event from those that have been seen in class, this event must be counted in 5 different cards. One of them will focus on talking about the particular event without giving details of the people or the names of the places "when this war began people from two different countries came, but then they joined with other nations, it was the first time that ... and at this moment he got up ... " Another to show what that historical time was like "at this time people worked in ... to have fun ... when they got married ... and their families were ... related to each other ... and when they died ...". Two others to describe two characters or groups that are part of this historical moment or process "this group was very brave, they had confronted all the communities around them ..." or "this character lived a short life ... he died very young because…". Finally, one to show the effects of that event "because of this event .... and something very important was that from that time ... "

Each student brings cards, in coloured cardboard or different paper, all with the same size. These are put into the bags assigned with name: who, when, what, and then. Once all the stories are put together in pairs, the students will take two tokens of who, one of what, another of when and another of then. And using the proposal can build a complete story. The task is to make it as credible as possible and define beforehand if it is true or false. Once the story is designed, each group prepares the presentation without using proper names or specific dates or places.

Each group will have the opportunity to change up to two cards on a single occasion within the development of the activity if they find that one or the other does not fit or if they would like to find something that meets the conditions for their story better.

To develop the challenge, two groups are called for direct elimination. Each group must give the coordinator of the activity a paper that says whether their story is true or false and the time, subjects, place and event their story explains. The first group makes the presentation and the second responds, without giving a verdict the groups change roles. After the presentation, the response is evaluated by the coordinator of the activity. A point is assigned if the story is correctly defined as true or false, another point if the location is correct, a point is assigned if they guessed true or false of what the opposing partner proposed, and a point if they identified the event, context, epoch and actors.

The coordinator does not clarify the validity of the answers, but only assigns the points. Thus the group can use the same presentation in the successive rounds.

The group that has achieved the highest number of points goes to the next round, the losing group is added to the winning group and everyone can improve their version of the story for the next phase.

In this way in the next round the groups are of four people, then eight and finally by two large groups.