AS/A2 revision and collaboration

I had a really successful double with my year 13 Computing class on Thursday and wanted to share the plan with you. It is a small class of 7, and we have finished covering the course content so are now revising. 

To start, I had a list of topics on the board and asked the students to pick one (different) each. They then had an hour to create a Wordle of key words from their topic and prepare a 1 minute talk. They presented to the class with their Wordles displayed as inspiration for their talk. I also timed them and told them when their minute was up. 

The topic and Wordle really helped them to focus down to what they needed to cover. Also, getting them to present with the usual PowerPoint behind them meant that actually had to discuss their subject and not read off a set of slides.

What are your go-to revision activities?