Interesting jumping exercise to find the middle of a jump. Can also be jumped on the "skinny side". (Someone commented that this looked dangerous, it's like a 2 ft pole jump. A horse could just step over it, or pull the whole thing down.)
pole grid for super clumsy & crooked baby horse. Poles are 3'6" apart. Use flat landscaping poles so they don't roll. Start by walking over it in both directions with halts occasionally. Later trot it slowly. Even if they start out by tripping on their shadow, they will learn after a couple days!