In the differentiated lesson, the teacher takes account of the students’ levels, abilities, interests, and needs. Effective differentiation includes ensuring student access to information, materials, and support; giving useful feedback; being a positive presence in the student's life. Differentiation requires not only the development of a comprehensive plan for how to use resources and how much time it takes to facilitate differentiated learning, but also developing strategies and criteria to assess results, which might be a subject of further research.