Abstract
In new curriculum of nursery school, manipulation and mathematics learning are prominent, that’s why I was interested in the effect of the manipulation by the game on mathematics learning, on pupils of three or four years old. So, I set up a teaching situation with the objective to accomplish a collection of four objects by pupils. This teaching situation was based on a manipulating game in which pupils had to place a number of candles on plasticine cakes. Study the results of this educational situation confirmed that manipulation by the game promotes the acquisition by pupils of numeration skills such as enumerating and counting. On the other hand, the situation analysis led me to rethink the evaluation methods that I had originally planned, in order to adjust the evaluation to the previous sessions.