What is the main concern? Of course , for the most part that is the RM1000000000 question. If you were a mind reader, you probably wouldn't be in the teaching profession. You might be concentrating on the lottery!
But in one sense, you are a mind reader. Your daily interaction with you students has given you great insights into what motivates them - and what completely turns them off. Over time, you learn to read their faces.
Once you can read them, you must then lead them. Where do they need to grow?Where do you want them to go? How will you utilize the knowledge you have gained by reading their countenances and behaviour.?
Evaluation lead to motivation - adapted from Minutes Motivators For Teachers