From an early age young children take an interest in playing with balls: they like to toss and kick them and crawl or walk after them. As they get older children enjoy playing ball games with their peers and their parents. And the more they practice catching, throwing, kicking and hitting the more skilled they become. 

Ball games provide children repeated opportunities to practice the two important aspects of catching, throwing and kicking: these are visual information gathering and then using this information to plan the movements needed for a particular task.  

In other words ball games require:

• good visual attention skills that allow the child to pick up the information needed to predict/plan the trajectory of the ball 
• the ability to turn this visual information into a motor plan;,
• the ability to combine movements of different parts of the body into a smooth coordinated action. 

Ball games are also wonderful opportunities for social interaction, coordinating your action with those of another person, and having fun. 

Roan 10 months: ball games 

Will 15 months ball games with Pam 

Max 2 years: throwing and catching a beanbag