Learn the roles of the teams

Each team is composed of 9 players, all of whom have specific defensive positions on the field. During offensive play, all players act as batters, taking turns trying to hit the ball. Once the ball has been hit, the batter can begin to run from home plate around each of the bases in a counterclockwise order, to complete a run back to home plate and score a point. The defensive team tries to recover the ball and tag the batter with it, ending the play. The 9 defensive roles are as follows
The pitcher pitches the baseball towards the batter. The ball has to be pitched at a certain level and straight over home plate to be considered fair, but a good pitcher can still make it very tricky to hit.
The catcher crouches behind home plate with heavy protective gear and a special mitt, and catches the ball when the batter doesnt hit it. The catcher can also pick up and throw a ball in play, if it lands close by.
The first baseman guards first base. He or she must be very good at catching the ball; if the first baseman manages to get a hold of the ball before the batter has made it to first base, its almost impossible for the batter to avoid being tagged out.
The second baseman guards the area between first and second base. In addition to tagging runners out at second base, the second baseman also helps catch ground balls before they roll into the outfield.
The shortstop stands between second and third base and returns balls to any of the basemen to help get an out. Shortstops see a lot of action in a typical game more than any other defensive position as most right handed batters tend to send the ball into the shortstops area.
The third baseman closely guards third base, and must also have an exceptionally strong throwing arm to send balls quickly to first base, all the way across the diamond. This is because (as with the shortstop) many right handed batters send the ball straight towards third base when they hit it.
The outfielders are three players who guard a different section of the outfield left, center, and right, as previously described. Their job is to catch high and long balls and prevent the batting team from scoring easy runs by simply hitting the ball hard.
All defensive players are allowed to use a large leather mitt on one hand to help them catch the ball. The catchers mitt is even bigger and thicker.