Creating online graphs used to be a hassle for both students and teachers. If you did not know how to navigate Microsoft Excel or PowerPoint, you may have had difficulties understanding how to create pie charts and bar graphs. A site called Online Chart Tool can solve this problem through its easy-to-use interface.
It's been several years since I have been in math class, so I gave it a try. I was pleasantly surprised by the sheer number of options of graphs to create and ways to customize my information. You can start simple and create bar, line, or pie charts or grow more complex by creating scatter plots and bubble graphs.
One drawback was that you had to manually enter in data, but this can be an advantage too. Many teachers want to find unique ways for students to interact with x,y data points. When manually entering in the data points, students can view the relationship between slopes and intercepts.
Online Chart Tool is a very easy to use tool, which could easily be used in high school, middle school, and even some upper elementary grades. Give it a try and let me know what you think! Feedback is always appreciated.