Ollie 180: an Ollie where the skateboarder and the skateboard spins 180 degrees after leaving the ground. Both the skateboarder and the skateboard rotate in the same direction (Frontside or Backside) with the skateboarder's feet sticking to the skateboard. This trick is usually referred to as a frontside or backside 180, or less frequently and more popular with older skateboarders and/or when performed on a bank/quarterpipe, a frontside / backside ollie
So with your back foot, you want to kick the tail of your board down and right when it touches the ground you jump in the air off your back foot. This is the ‘pop’. It takes a little bit of getting used to but most beginners don’t really understand that initially, your back foot is doing most of the work. Then bring your knees up to your chest after the jump, the higher up you pull your knees the higher up your skateboard can go!
The laws for skateboarding helmets vary from state to state. Many states require that skaters wear a helmet under a certain age, and some states like California make all skaters under 18 wear a CPSC Certified helmet at all times. CSPC skateboard helmets usually have an EPS protective liner that meets the safety standards for skateboarding. Make sure you check your state's regulations before ordering.
To get higher ollies, I would suggesting resting your back foot on the very end of the tail and the front foot in the middle of the deck to allow for more slide. Popping as hard as you can and catching your board in the groove of the nose with you ankle practically resting in the groove will level the board out in the air. after this initial movement slide you feet back to the bolts on the tail and nose to ensure a clean landing.