Math diary, fifth grade.

Diary refers to the carrier used to record the content, and it also refers to a notebook for taking notes every day or a record of things encountered and done every day.

As a style, diary belongs to narrative practical writing.

The content of the diary comes from our observation of life. So you can narrate, you can write about people, events, scenes and activities. There are all kinds of diaries, and everything you think in a day can be the content of a diary.

Literally, it is probably to write down what happens every day. A diary is a record of what you encounter and do every day, and some also record your feelings about these things. A daily or frequent record of what happened, was handled or observed, especially a daily record of a person's activities, thoughts or feelings.