In order to improve self-managing the dietary habits, an education method based on “one soup with three side dishes” was applied to high school girls with an athletic club activity.  At first students learned meaning of meals and nutrition also the concept of “one soup with three side dishes”, and then made meal plan mimic menu ( three meals a day ) by using photo-cards of dishes.  However, meaningful alteration was not observable on their menu dishes.  They were influenced much by their parents who make daily dishes for family.  Contrary to their menu making, nutritional value of their breakfast and dinner tended to rise up and drop down respectively after having this education.  Also nutritional value of their lunch choice at the stores tended to rise up.   So, to educate students using effective tools such as the concept of “one soup with three side dishes” and photo-cards of dishes may be useful for habitation of ideal diet.