I just discovered a nice little trick that allows me to Talk to my Chromebook to add posts to my blog or add updates. Plus I can then use the power of a real keyboard & mouse to edit and type os.
Open chrome, then open a Google Doc. Click to start typing and then click the Tools option on the menu and select Voice typing.
Then click the Microphone Icon and start talking. Whenever you want you can click in and do some editing.
When your ready, just copy and paste to wherever you want.