A math curriculum developer creates instructional content for math students. In this position, you usually develop math lessons for K-12 students. Some curriculum designers focus only on the curriculum for elementary or high school classes. Your duties include creating a curriculum that meets the learning requirements and educational needs of students in a particular grade. Your lesson plan can consist of textbooks, workbooks, and computer content. Your duties can include assessing student test scores to define areas that need improvement. You then create plans that address those areas. Your responsibilities usually include creating different lesson plans for students in each grade level.