At Learning List, we are often asked, “Which material is the best?” While some organizations rank and/or rate materials, we do not. We do not sum a review up in a number or set of numbers or tell you which materials will be best for your students, because many variables affect the efficacy of a material. For example, how the material will be used, whether the material has the adaptions your students need and whether the district’s technology will support the full implementation of the product are all variables that affect which product is “best” for your students.