The numbered passing drill is a simple passing exercise that can be used as a warm-up or to help players work on passing and moving. In essence each player is given a number and passes to the next player in the sequence.
Create a large rectangular or square grid, then number players off so that each player has a number of their own. If there are more than six players total it's best to use multiple groups so that players can get more touches on the ball. It's okay to have multiple groups in the same grid for this exercise.
Once all players have been given a number, player 1 passes to player 2, who then passes to player 3, and so on. The last player in the sequence passes to player 1 and the cycle continues. Throughout this exercise players are to be moving freely throughout the grid, being sure to move to a new location once they play their pass.
When using this as a warm-up drill it can be easy to incorporate dynamic movements by having players perform different locomotions around the outer cones after passing.
Communication and awareness are vital attributes in a football match and this exercise trains both because players need to be aware of where the next player is that they are passing to.
It's also a good way for players to form the habit of passing and moving. In a match movement off the ball is vital for players to create good passing angles and support their teammates.