Correcting mistakes in spoken and written english

Most people agree that making mistakes is a part of learning and most people also agree that correction is a part of teaching. In my thesis I would like to examine ways to prevent learners from making mistakes, I am also interested in such interesting questions: - when to correct mistakes - how to correct them. Not so long ago there had been an increasing realisation of the importance of role mistakes in the learning process. In my thesis I will examine this role and I would like to find some practical techniques for helping students to accept and learn from their mistakes without being discouraged. I would like to classify mistakes and try to find their causes and their importance in my thesis. I also intend to find out why fluency and accuracy are so important, when we should encourage the first and when the second. I would like to also deal with different correction techniques.