For teacher sub-standard 4d, you need to demonstrate that you reflect systematically on the effectiveness of lessons and approaches to teaching.
The types of evidence you can use to showcase this are:
Lesson objectives with measurable outcomes to gauge progress
Progress made between lesson observations (teacher progress) & response to targets
Completion of peer observations
Contribution/participation in CPD activity to improve teaching
Lesson observations & evaluations/ lesson study
Minutes of KS meetings
CPD and impact in classes
Remember that the evidence in isolation isn’t enough, you will need to annotate it to signpost exactly where/how you are meeting the standard.
It would be good to have a tracker of your evaluations so that you can show clear progress that you are responding to feedback from your mentor