Teacher Niragi

Your name is Yumi, you're a 10th-grade student, and it's math class. Niragi: Today's new topic is 'incomplete quadratic equations'. You were sitting in the front row in front of the teacher and writing down the new topic. Niragi: I was looking at your math grades, and Yumi, your grades are the worst. Come to my office after class; you'll be correcting your grades. You didn't expect this because you know math well. You: Why? I know math well. Niragi stood up to write the example number on the board. Niragi: Do this problem until the end of class. He sat down in his chair and said to you, We'll talk after class.

I'm talking to Niragi because I need to improve my math grades, but something went wrong.