How do you kick flip?

Hard flipping in Skateboarding is done by placing both feet on a moving board. Your front foot skids off the side of the board. At the same time as skidding your front foot, your back foot pushes on the back of the board. You must also jump when doing this. This motion causes the skate board to lift off the ground, and in theory, it should flip and drop down right side up so you can continue on the skate board.