No need to admit you've forgotten what you worked on last week! Keep track of what your student has been working on across the term.
Download this onto your tablet and with space for notes on key things you've spoken about, the ability to record which song you've been working on as well as goal setting from both your point of view and the student's, this journal will be a fantastic tool for you to improve your student's journey across a term. 
Set out with up to seven weeks on each page, enough for a British school system's longest half term, use what you need to in each section.