1. When the observed person is human, the discussion about the left and right of the observed person is decided by the left and right of the observed person.
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.
Left and right is a 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
Difficulties and significance of left and right teaching in primary schools;
The "left and right" part is taught on the basis that students have mastered the relative position and order of describing objects with "up, down, front and back". The purpose is to stimulate students' interest in learning through interesting specific activities, so that students can understand the meaning of left and right in the activities.
Because determining the position and order of objects is a basic content of establishing the concept of space, the teaching focus of this section is to let students determine the left and right position and order of objects in activities and express them in their own language.
The teaching difficulty of this section is to understand the relativity of left and right. Students already have the spatial concepts of front, back, head and feet, so they have a certain cognitive basis when learning "left and right", while the human body itself is symmetrical and difficult to identify.
Therefore, when sorting out teaching materials, it is divided into two steps: first, remember "left" and "right" in combination with asymmetric actions in people's behavior habits, and then further understand that if two people face the same direction, they see the same position and order; If they face each other, they see the positions on the left and right in reverse order.
The teaching of this section should be combined with students' existing life experience to understand the meaning of left and right, not as knowledge points, but to let students gain experience and understanding on the basis of experience.