How do I make the turtle turn with commands? (MicroWorlds in Action)

How do I make the turtle turn with commands?

Method 1: Use right or left. See Squares 1.

code
Can you draw a little picture as you control the turtle's heading with the slider?

Method 3: Use towards. See Ant Hill 3.

code
Press aim, then use the sliders to move the pink turtle as the black turtle continually points toward it.