When individual students are all treated equally in that they have identical exposure to curriculum material, the rate, quality, and quantity of learning will vary from student to student. If all students are to master a given curriculum, some of them need different types of help than others, as any experienced teacher knows. If the statements above are both true, which one of the following conclusions can be drawn on the basis of them? ['The rate and quality of learning, with learning understood as the acquiring of the ability to solve problems within a given curriculum area, depend on the quantity of teaching an individual student receives in any given curriculum.', 'All students should have identical exposure to learn the material being taught in any given curriculum.', 'Unequal treatment, in a sense, of individual students is required in order to ensure equality with respect to the educational tasks they master.', 'The more experienced the teacher is, the more the students will learn.']