One of the things I have realized I had been doing wrong is echoing students’ errors or mistakes intending to correct them. It is not a good strategy because students may not know if you are trying to correct them or get the other students to hear the answer.
So, how should error correction be done? There is not only one of doing it, but three simple things to remember are repeating the error back with a questioning intonation, reformulating with the correction, and explicitly telling students what the problem is.
It is also important to give correction in the controlled stages of the lesson and after a free speaking activity. However, it is possible to offer correction immediately if the error interferes with communication.
Lastly, every teacher should make note of the necessity of the manner of correction. It is always important to involve the whole class while correcting because the others may have the same problem. It should never be forgotten that being helpful and supportive as well as not overcorrecting and embarrassing the student are the other key points for effective error correction.