The spreadsheet is a utility tool that can be adapted to many different explorations, presentations, and simulations in mathematics. There are spreadsheets available on almost any platform. An essential feature should be the ability to make graphs and charts from the matrix of data.

The goal of this writeup is to show three examples of how spreadsheets can be used in high school mathematics classrooms. I believe that students should get practice using spreadsheets in high school since they are very important in today's society (in business, education, and home). It is the school's responsibility to prepare students for their future and I believe that one way to do this is by promoting the use of computers in solving problems.

Example 1: Functions

Example 2: Business Application

Example 3: Fractals