Insufficient planning before writing undermines structure. Students rush into writing without organising ideas, producing disorganised, unclear writing. Prevention: invest planning time developing clear outlines. Structured plans prevent rambling and ensure logical organisation.

Weak thesis statements fail to guide writing effectively. Vague, unconvincing opening statements create weak foundations for persuasive arguments. Prevention: craft clear, specific thesis statements before writing. Strong theses focus writing and guide readers through reasoning.

Inadequate supporting evidence weakens arguments. Students make claims without substantiating evidence, producing unconvincing writing. Prevention: support each claim with specific examples, quotations, or data. Evidence transforms opinions into credible arguments.

Poor paragraph structure undermines clarity. Paragraphs combining multiple ideas or lacking topic sentences confuse readers. Prevention: each paragraph should address single idea supported by clear topic sentence and relevant evidence.

Weak transitions create disconnected writing. Ideas presented without connection feel abrupt and disorganised. Prevention: use transitional phrases and sentences guiding readers between ideas. Effective transitions improve reading flow.

Repetitive vocabulary bores readers and limits expression. Students use same words repeatedly rather than exploring vocabulary variety. Prevention: vary word choices deliberately. Use synonyms and varied sentence structures maintaining reader engagement.

Insufficient proofreading allows errors undermining credibility. Spelling mistakes, punctuation errors, and grammatical problems reduce writing quality. Prevention: proofread thoroughly, ideally aloud. Reading aloud highlights errors missed through silent reading.

Passive voice overuse weakens writing impact. Passive constructions often lack clarity and force. Prevention: favour active voice generally. Reserve passive voice for specific purposes rather than habit.

Generic introduction and conclusions waste opportunities. Boring openings and repetitive conclusions fail to engage readers. Prevention: craft compelling openings and substantive conclusions adding genuine insight rather than repetition.

Ignoring audience awareness produces inappropriate tone. Understanding intended audience guides appropriate vocabulary, tone, and complexity. Prevention: clarify audience first, adjusting writing accordingly.

Overcomplicating ideas confuses rather than impresses. Complex vocabulary and convoluted sentences don't demonstrate sophistication. Prevention: aim for clear, engaging expression. Simplicity often communicates more effectively than complexity.

Finally, distinguish between revision and proofreading. Revision improves ideas and organisation; proofreading corrects surface errors. Both matter for strong writing.