The backside ollie is a fundamental that will lead you onto more advanced backside tricks. Turning backside means that you are not facing the direction that you are travelling in at the peak moment of the backside 180 ollie (backside ollie), making this trick a little more difficult than the frontside version at first.
Concentrate of popping as hard and as cleanly as you can and try to imagine the process of the trick happening in your head before you pop.