Research confirms that a child's concentration span is 2 - 3 minutes per year of their age. For example, a 7 year old can maintain concentration for a maximum of 14 - 21 minutes. Learning a new skill, especially in a different language, is very tiring. Fatigue has an affect on a child’s ability to learn new skills. Because of this, we ensure learning time is limited to an hour, with regular changes of activities to renew their concentration and learning energy.