The PGCE is an intensive course - burning the midnight oil preparing for your next days teaching practice. Selectors will want to know that you are aware of this and have the commitment and stamina to cope.

Perhaps you have already undergone such a demanding course. If so you should describe it now and in detail. If you have had experience of working and studying at the same time then you should certainly bring that up. Part of the intensity is the act of juggling the study elements of the course with the practical elements during teaching practice.

If you have previous experience of work, or perhaps a hobby or interest, in which a lot of preparation was demanded this would also be relevant. Any teacher will tell you that a successful day's teaching results from the hard graft put into preparing it the day or week before. And the bottom line is that if you can cope with the intensity of the teacher training course you are very likely to be able to cope with the demands of teaching proper.