The correct answers are "Maria Montessori" and "John Dewey". Maria Montessori was an educator that revolutionized the education system by proposing a method based on self-directed activities where the teacher only guide the children, her method was spread mainly from 1906 to 1911. John Dewey influenced education during the early part of the twentieth century by writing about the education process, his ideas included education is life not a preparation for it, education is about the quality of the mental process and education should change constantly.