2. When the observed person is other objects, such as apples. The discussion about the left and right of the observed person is decided by the left and right of the observed person.
3. When the observed person is a picture, if the picture is an object, it is determined according to the aspects in the above 2. If there is a person in the picture, there will be two observation criteria: asking who is to the left of someone in the picture is based on someone. And asking who is on the left side of the graph is based on the observer.
About is continuous learning. But knowing the left and the right is more difficult than knowing the front and the back. The meaning and relativity of "left and right" should have a stronger spatial concept.
Extended data:
Understanding the teaching content of left and right includes understanding the relativity of left and right. The relativity of left and right is difficult for children to understand.
Psychological research shows that children generally have to be 7-9 years old before they can gradually form the ability to distinguish left and right according to others. According to this rule, it is more appropriate for students to learn the theory of left and right relativity at the age of 8, that is, from the second grade to the third grade. However, considering pre-school education and follow-up knowledge learning, the textbook will arrange the left and right relative contents in the second volume of the first grade.
Of course, if the relativity between left and right is not involved, this part of the content can be arranged in the first volume of senior one. Considering the inevitability of left-right relativity in daily life and the need for students to have a preliminary perception, the content of left-right relativity is arranged in the textbook.