Unit 4

Topic Description:

Functions are what my high school math teacher called input/output machines. In Computer science functions allow a programmer to define a process, give it a name, and use that process over and over again to take inputs, "do some stuff" with or to them, and return an output.

Questions to be addressed:

• • What is a “function” and how is it useful in programming?

  • How can we break complicated problems down into smaller pieces to work toward a solution?