Whiteboard collaboration program/app/website
 

I'm traveling quite a bit this fall. Mrs. Swede is a severely math-challenged, so I'm still left helping Miss Swede do her (now 6th grade) math homework. Currently, Mrs. Swede takes pictures of Miss Swede's math homework and sends it to me via Facebook Messenger, and we chat via Skype.

That works, but I think I'd rather do whiteboard sessions with her to help explain the math better. I'm open to anything web-based, Windows-based, or Android app. Ideally, it would be free, but I guess I'd be willing to pay a small amount if it's a really good product.

IDroo looks like a very good candidate, but I'm asking this fantastic community for other suggestions. Thanks in advance.

Have you looked at Teamviewer?

The Windows client is free for personal use and they have clients available for other OSes including Android (don't know about the licensing on them).

I use it primarily for remote support but it does have white-boarding capabilities.

Could you do it via Google Hangouts?

Look at this add-on:

https://chrome.google.com/webstore/d.../reviews?hl=en