This event is a free peer to peer learning study group for those seeking to complete the Google Machine Learning Crash Course :

https://developers.google.com/machine-learning/crash-course/

You are expected to have read and completed the assignments for each session (total of 15). At the event itself, you can discuss what you have learned and any problems you have encountered. Each participant will be asked to periodically present what they have learned to demonstrate their grasp of the material. Attendance and participation will be marked. Prizes and awards will be given at the end of the course.

Assignments for Session 1 :

Familiarise Yourself with Math concepts found here :
https://developers.google.com/machine-learning/crash-course/prereqs-and-prework

If you just want to practise TensorFlow on your own terms and work on your projects, you can join the hack :
https://www.meetup.com/gdgcloud/events/249420698/

Make sure to sign up at the Skills Matter website to facilitate entrance :
https://skillsmatter.com/groups/10754-gdg-cloud-london#next_up