There is one time in habit-formation when concentrated practice is most efficient. That is at the beginning. In a process as complicated as typewriting, so little impression is made at the beginning by a short period of practice that progress is but slight. On the first day, one should practice about four or five times to secure the best returns, a half hour each time. =What the Teacher Can Do.= Now, let us see how the teacher can be of assistance to the pupil in habit-formation. The teacher should have a clear idea of the nature of the habit to be formed and should demonstrate the habit to the pupil. Suppose the habit is so simple a thing as long division. The teacher should explain each step in the process. She should go to the blackboard and actually solve a number of problems in long division, so that the pupils can see just how to do it. After this the pupils should go to the board and solve a problem themselves. The reason for this procedure is that it is most economical. If the children are left to get the method of doing long division from a book, they will not be able to do it readily and will make mistakes. A teacher can explain a process better than it can be explained in a book. By giving a full explanation and demonstration and then by requiring the children to work a few problems while she watches for mistakes, correcting them at once, the teacher secures economy of effort and time. The first step is to demonstrate the habit to the pupils; the second, to have them do the act, whatever it is, correcting their mistakes; the third, to require the pupils to practice till they have acquired skill. The teacher must make provision for practice. =What Parents Can Do.= Parents can be of very great assistance to children who are forming habits.