I am teaching this course for the first time and have found AQA less than helpful and the specification vague to say the least! Obviously I am about to start the students on unit 5 and there is absolutely no exemplar material provided by the exam board. I was wondering if anyone out there has any guidance, support, resources, experience or advice about how to get my students to access and tackle this unit. I know there are suggested investigations but in theory they can come up with their own scenario/question for investigation. It seems that AQA have made this particular unit very open for the students without providing any clear guidance to those of us in the "hot seat" trying to guide them successfully.