In what situation would you want to implement an array? How items in the array might be searched for or sorted.

Like search algorithms, sort algorithms require logical thinking and "looping" skills.
Array sorting techniques require much of the same thinking skills as searching. The most important aspect by far is simply knowing how to manipulate an array. By definition, an array is a homogeneous structure consisting of a collection of memory locations used to store data values all of the same type.