Yachatz: the breaking of the matzah

Yachatz is the breaking of the matzah. It is the fourth step of the seder. Three pieces of matzah are taken out of a white bag and the middle one is broken. The bigger one is hidden somewhere in the room. You will be looking for it later in the seder. It is called the afikomen. The smaller piece is kept in the matzah bag.  It is the "poor man's bread" and symbolizes the little amount of food the poor have.

Why are there three matzahs?

haggadah Section: Cover
Source: google