Hello, I suggest you consolidate your child's math knowledge in the first grade, because your child didn't learn math well in the first grade, and a lot of math in the second grade is based on the knowledge of the first grade, so if your child doesn't learn math well in the first grade, the expected effect of class in the second grade can be imagined, and it will definitely be very poor. Therefore, I suggest that you let your children learn the math knowledge of senior one more solidly when they are in senior one, and then let the expected class do better. I'm happy to answer your question.