One of the first resources to surface is the Quick Start Guide for Teachers. It’s being described as a preview version but is available for everyone to look at before the release of the hardware devices themselves.
You can view it below or use the icons to put it into fullscreen mode,
The guide is also available as a PDF for you to download and print :
You can get a direct PDF download from here:
https://www.hoddereducation.co.uk/media/Documents/ICT/MicroBit-Quick-Start-Teacher-Guide.pdf