Finally, this seems to be the only viable option for using your Chromebook like an interactive whiteboard. See the video demo below.
The Ipevo Interactive Whiteboard System (IW2)
This system works with a Chromebook, as long as you have the Ipevo apps installed on your device. In my experience it is the best system to use with a Chromebook. However, there are a few limitations. You can only use the Ipevo wand with the Ipevo Whiteboard app. It does not turn your entire screen into a touchscreen. If you try to use the Ipevo wand outside of the app (such as on another webpage), the device will not work.