Hello Punit,
I’ll try to answer on both of your questions
1. Collaboration
Open edX has “Teams” functionality that helps create environment for collaboration.
Array of features for students collaboration is really wide.
What you can use on your own Open edX instance today out-of-the-box:
- Calendar
- Video conferences (Google Hangouts, Google Meet, Big Blue Button and a lot more)
- Discussions with different level of access
- Google collaboration tools: Google Docs, Google Sheets, Google Forms
- Surveys, polls
Of course this list is not completed - Open edX is very open platform and you can integrate almost everything you need.
2. Wordmap
Maybe “Word cloud” feature would help?
Please provide more details so I can recommend some particular tools that would suit your needs best.
Hope some of our own materials would be helpful for you:
Best Regards,
Sergey