During the reflective supervision sessions run by the workforce development team we discussed a number of tools, below you will find handouts describing each of the tools:-
Planning Sheets (Bentley & Bowler)
Stadler (Kantian principles)
and as an added bonus, those quotes chosen by one Mr.E.Bear are also to be found here
Korthagen's model of reflection, is a model from education which attempts to develop reflection at a much deeper values level.