There are many challenges that a teacher could encounter when attempting to teach mathematics. These may include but are not limited to:

1. The student's understanding of the material
2. Math block, which is the complete inability to comprehend math
3. Previous knowledge of the subject matter
4. Adequate grading of the work by students
5. Provision of extracurricular lessons and tutoring
6. Assisting special needs students
7. Dealing with absent students
8. Learning ability of the student - can the student comprehend the material?
9. Plagiarism