其實週記就是每週一記，四年級也好，國中也好，高中也好，要求都是一樣的。老師讓大家寫週記，就是每週把自己的所看到的、聽到的、想到的、經歷的東西記下來，形成的文字片斷或一篇文章，一週寫一則。
如果是一個片斷，將事情寫清就行了，當然，時間充裕，你可以將前因後果，你的想法補充完整，形成一篇文章。不論無論，週記沒有什麼特別的格式，跟我們平時說話寫文章一樣，要求就是條理清楚地說清一件事、一個想法。
週記的關鍵是要真，真事、真情、真想，不要虛構。用力表達你正經歷的、正思考的.事，對提高你的寫作能力是有幫助的。
週記的基本格式是寫明日期(包括星期,年,月,日,氣候),標題,主題內容,末尾寫上署名.
日期的格式: 星期，年,月，日，天氣
【參考範文：My Happiest Day 】
July 15,2007 Sunday Sunny
Today is Friday. It is my thirteenth birthday. I got up very early in the morning and put on my new clothes happily. My parents bought me the new clothes as my birthday presents. I went to school earlier than before. I invited many of my classmates to come to my birthday party in the evening.
Evening came at last. Many of my classmate came to my home. they bought me lots of beautiful presents. they all said,"Happy birthday to you!" We sang birthday songs my parents brought out a big birthday cake, saying, "We love you for ever. Happy birthday!"
At the end of the party, we ate the birthday cake and some other delicious food. How happy I was!
It was Sunday. Our teacher Mr Zhu led us to a park lly we go to the park to spend our holiday. But today we went there to take part in voluntary labour.
We got there at nine o’clock. Mr Zhu divided us into three groups and then we began working.
the students in Group One planted trees and watered flowers. the studentsin Group Two were busy collecting litter left by the tourist. they also cleaned the benches in the park. I was in Group Three. We went to the children’s playground and cleaned all the equipment there. We worked very hard.