The end in any learning process being to set the pupils a problem which may stimulate them to gain such an efficient control of useful experience, or knowledge, we may note two important problems confronting the teacher as an instructor:
1. _Problem of Matter._--The teacher must be so conversant with the subject-matter of the curriculum and with its value in relation to actual life, that he may select therefrom the problems and materials which will enable the child to come into possession of the desirable experiences. This constitutes the question of the subject-matter of education.
2. _Problem of Method._--The teacher must further be conversant with the process by which the child gets command of experience or with the way in which the mind of the child, in reacting upon any subject-matter, selects and organizes his knowledge into new experience and puts the same into execution. In other words, the teacher must fully understand how to direct the child successfully through the four stages of the learning process.
(_a_) _General Method._--In a scientific study of education it is usually assumed that the student-teacher has mastered academically the various subjects of the curriculum. In the professional school, therefore, the subject-matter of education is studied largely from the standpoint of method. In his study of method the student of education seeks first to master the details of the process of education outlined in the opening Chapters under the headings of problem, selecting process, relating process, and application. By this means the teacher comes to understand in greater detail how the mind of the child reacts upon the presented problems of the curriculum in gaining control over his experiences, or, in other words, how the process of learning actually takes place within the consciousness of the child. This sub-division is treated under the head of _General Method_.
(_b_) _Special Methods._--In addition to General Method, the student-teacher must study each subject of the curriculum from the standpoint of its use in setting problems, or lessons, which shall enable the child to gain control of a richer experience. This sub-division is known as _Special Methods_, since it considers the particular problems involved in adapting the matter of each subject to the general purpose of the educative process.