- interface (GUI) of our prototype needs a lot of improvement if we would like
- it to be really usable by novices. In particular, the user is too easily
- distracted by the tutor's hints that are ``pushed'' to her.
+ interface (GUI) of our prototype needs a lot of improvement if we want
+ it to be really usable by novices. In particular, a critical issue
+ is avoiding continuous distractions for the user determined by the hints
+ that are asynchronously pushed to her.