The basic concept of Chalk Ball is all about math, physics, and quick thinking. How and where you draw the lines determines the angle that the ball will rebound. You have to be quick on the draw–if you just bounce the ball around randomly and try to keep it alive, you’ll quickly run out of chalk and the ball will drop. Game over! First, pick a theme–Chalkboard, Notepad, or the newest one, the hip and retro 8 Bits. Next, decide what style of game you prefer: Survival or Adventure. Survival is the basic game–how long can you keep your ball in the air? As you get better, advance to higher…