Others use loose leaf paper, special forms or a floppy disk. Nothing in the diary should be thrown away. You should not try to produce a perfectly polished essay. The diary is a record of your developing thought and action, and of the real process of action research and reflective practice. Because your diary entries will be of different lengths from day to day, a printed diary is not a good idea.
Some people use a highly structured format using prepared forms.
However this is not esential, provided you can find your way aroound your own diary. It is very useful to leave space for later comments or additions, either in wide margins, on the backs of pages, or in good spaces between entries. There are no hard and fast rules about style, language, and spelling. Keep your diary in the style which which you find useful, and which helps you to reflect on what you are doing. Critically reflect on you own diary keeping.