Identify and correct common sentence-level errors to establish a baseline of grammatical accuracy.
Teach common sentence-level errors.
Before IELTS examiners look for fancy vocabulary or complex grammar, they look for accuracy. A well-organized essay full of basic sentence-level errors will struggle to reach a Band 6. Fixing your foundation is the fastest way to boost your score.
Pro tip: You do not need perfect grammar for a Band 7.0, but you do need frequent error-free sentences. Eliminate the most common errors first.
Visual checklist for sentence accuracy.

Memorize these 5 checks to quickly proofread your IELTS essay.
Formalized grid for checking sentences.
Correct grammar errors in essay-style sentences.
Identify the exact category of error in a sentence.
Read the following IELTS sentence: "Because public transport in rural areas is often unreliable and expensive."
What is the primary error in this sentence?
Reflect on repeated grammar weaknesses.
Write a realistic IELTS response. Don't worry about perfection; just write naturally.
Which of the 5 sentence-level errors do you find hardest to spot in your own writing?