The document provides guidance on writing informal letters for students in the Malaysian school system. It outlines the key components of an informal letter, including addressing the recipient, using a salutation and complimentary close, indenting paragraphs, and proper punctuation. It emphasizes using contractions and informal language is generally acceptable, though local exam standards may differ. Sample openings, closings, and organization for the letter body are also presented. A sample question prompts writing a letter to explain the benefits of co-curricular activities to a sister.