It is normal to have doubts when studying any subject. Mathematics is an interesting world of numbers and equations which invariably leaves students with questions and doubts. Sad part is that more often than not, students hesitate to raise their doubts in the class.
They feel shy or embarrassed to share the doubts and thus remain deprived of the correct answers or clarification that they actually seek. When this continues, the student feels a lag in his/her preparation and may also feel demotivated in the long run. So in our doubt classes, we specially encourage students to share their doubts and get them solved by the teachers promptly.