GRAMMAR CORRECTION EXERCISES Error correction in the ESL classroom is one of the stepping stones to accuracy in English. Recognizing errors shows that a student is making progress in his or her studies. This publication has been put together with authentic writings from low level ESL students up to an Intermediate level. Can you recognize some of the most common errors made by second language English learners? Test yourself and find out, then go to the answers to check if you were right or wrong. Notes are given after each correction as to why it is an error. If you can identify all 165 errors then great It means you've come a long way.