| 摘要 |
PROBLEM TO BE SOLVED: To improve a learning effect when a user learns plotting. SOLUTION: Each stage is divided according to learning contents, and is also divided into one or plural steps. Learning at such stages are controlled by the progress page. A user learns the contents corresponding to values progress page in stage units. When the study of the final page in a stage is completed, it is checked whether or not the user has fully understood the stage to finish, and he is made to repeat the study at the stage until he is judged as he has fully understood it. |
