He doesn't know what a bonus is and you think he knows what "one and one" means?
EDIT: OP, at the start of each half, the only way to get free throws is to be fouled in the act of shooting. Once Team A racks up 7 fouls, Team B will then be in the "bonus" where they get at least one free throw for ANY foul that Team A commits until the end of the half. If they make that first free throw, they get another. If they miss, it's a live ball.
Once Team A racks up 10 fouls, Team B is now in the "double bonus". Any foul from now until the end of the half grants two free throws to the other team, regardless if they miss the first.