here are some good video tips for the speaking test
do a youtube search for ielts6plus
for writing
General:
The best practice is to do practice tests, within the allotted time, and get feedback from a native like language teacher
Use clear paragraphs with a variety of joining and sequencing phrases: but don't be mechanical in how you use language … e.g. first, second, third etc.
Develop one major idea in each body paragraph
Have an introduction and conclusion of appropriate length
Use a variety of more complex vocabulary and grammar constructions – don't focus only on being correct, without also being varied in your expression
DO NOT write less than the suggested minium number of words – you will be penalized. Write at least 50 words more than the minimum.
Plan before writing.... you don't have time to start again and this is not like a computer test where you can cut and paste
Task 1:
If it is a graph or table, make sure you cover most of the key data, including not only the trends, but also some of the specific figures or numbers.
If it is a diagram, make sure you describe all the key stages of the process or key aspects of the change.
You should provide a clear overview of the data/trends/stages at the start or end of your response.
Task 2:
Task 2 is weighted more heavily than Task 1, so leave sufficient time to write a good response
Make sure you answer all parts of the question (analyse what you are asked to do carefully)
Provide example or evidence for your main points
Give an opinion and justify it
Look for the offical websites to provide the clearest similar practice tasks to the types of questions asked in the writing test.