Lucidchart is a web-based diagramming software that allows users to collaborate and work together in real time to create flowcharts and organizational charts. Lucidchart can be accessed via single sign on using your FRPS account. Charts can be shared with both colleagues and students using their FRPS email account. 

Look for the "More" section in your toolbar.

Sample:

Lucidchart Education K-12                                                              Lucidchart Online Tutorials