If your grades were very less in maths. Then don't be disappointed friend. Think that you can even more better this time and never give in your life. You can improve your grades by - . Making a timetable to study. Solve each and every sum at least two times. Solve the sums in the revision exercise. Go through the example problems which is very important. Surf through the net to solve some questions based on the topic.
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Person 1 : I think that failures are a part of one's life and without failure no one can ever become successful .

Person 2 : Yes , I agree to it .She should not worry about a failure and should learn something from it .

Person 1: She should know where she was wrong and rectify he mistake so that i could not happen in the future. 

Person 2 : She can also consult her teachers for help as teachers  always tell the right path .

Person 1 : Moreover she should not blame teachers for her bad preformance as teachers always teach all students equally and well .

Person 2: Yes , i agree that blaming her teachers for her fault is not a good practice .

Person 1: Remedial classes before and after classed can also be take to improve her performance .

Person 2: And at last she should learn from her failure and work hard .