Identify the most effective approach for the given topic. Tying a Shoe

By approach do you mean teaching someone? If so, put one lace over the other and put one lace under the crossed pair. Then pull tightly. Make a bunny ear with one lace, wrap the other lace around the base of the bunny ear, then create another bunny ear by pushing a section of the lace that isn't a bunny ear through the gap the 2nd lace creates. Then pull the 2 bunny ears tightly.