Share Show the class different ways nations choose their next monarch to illustrate pre-order and level order traversals as students visualize tree traversal methods. with FacebookShare Show the class different ways nations choose their next monarch to illustrate pre-order and level order traversals as students visualize tree traversal methods. with Twitter Call this activity: Who Gets to Be King? The British use pre-order to choose their monarch. The Saudis use level-order to choose their monarch. More about this tip Tags Meaningful and Relevant Content Programming Concepts External Source Interview with Ria Galanos Other Tips By Other Tips By Ria Galanos