Why do we use Spreadsheets

I believe that as a teacher we use spreadsheet because it is a good way to keep us organized as well as an easy and fast way to keep track of students grades and certain projects throughout the year. A spreadsheet has a significant advantage over a calculater for many reasons. For example when you use a spreadsheet to keep track of grades you can highlight the grades you want to get the average then press the formula and its done. With a calculator you would have to type in all the numbers, there could be room for error and unfortunately mess someone's final average up. Using a calculator also takes more time.
Storing, calculating, and presenting information are the three main functions of an excel spreadsheet. These basic functions are the foundation of a spreadsheet and can be used in many ways to help the user out. Something else that can be a main function of a spreadsheet is pictures or animation. To many of the younger students this could be a form of better learning.