ppt game. Practise questions in the past. (when was he born? when did he die? who killed his father? ...)
Students do not need to know the life of William Wallace as they need to find the questions, not the answers.
I organize the class in two teams. Students must take turns to give answers but can speak with their team members. Answers must also be written on a small white board that I provide the teams.
(PS for French teachers : I use it as an extra exercise after the exercises given in the French ESL course book: New Live 3eme)