Both Cambridge International Examinations (CIE) and Pearson Edexcel offer highly regarded qualifications in mathematics, making it difficult to definitively say one is universally better than the other. The best choice for you depends on individual learning styles and goals. I've gathered a 10 years experience in teaching maths interestingly. I conduct classes, visiting students' places so that he/she can learn in a familiar surrounding. And I've flexible schedules for the convenience of the students and their parents,