Brainstorming before writing is important as it helps you get and gather all the information and points that you're gonna write. This also helps you set your points and paragraphs right so they're in order. Secondly, grammar and spelling checks are also equally as important. There's no point if you're using big words but the grammar and spelling is off. Checking your spelling and grammar will prevent from getting your marks deducted as well. Lastly, reading. Reading widens up your vocabulary and this will make your essay more interesting. 'bunga-bunga bahasa'.