Question 1: How to understand that "on the same plane" does not involve the third dimension?

Not in other planes.

Can be seen as an infinite piece of paper.

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Question 2: How to help students understand the same plane? For example, using a desktop and a wall, not to mention the concept, is not easy to understand.

Question 3: How to understand the stem error of the sentence "Do not intersect in the same plane"? You can't answer.

Question 4: 1, the difference between parallel and vertical 2. How to understand "not intersecting in the same plane" 1, parallelism must occur in a plane, but there are two kinds of verticality: plane and space; The included angle between parallel lines and known straight lines is 0, while the included angle between vertical lines and known straight lines is 90.

2. Disconnecting in the same plane means that two straight lines in the same plane have no intersection. (In the same plane, the intersections of two straight lines may be 0 (parallel), 1 (intersecting) and countless (overlapping). )

Question 5: Aircraft. What is the literal meaning of this sentence?

This plane is a parallelogram.

Question 6: Why are two straight lines in the same plane either intersecting or parallel? Arbitrarily placed line segments (not intersecting) are not necessarily parallel? Because a line segment has endpoints, it cannot extend like a straight line. When you place them at will, there are three situations: parallel, intersecting, nonparallel and disjoint. 2. Two straight lines are arbitrarily placed in parallel and do not intersect. Because straight lines are characterized by infinite extension.

Question 7: High school mathematics: 1. A vector parallel to the same plane is called a * * * vector. How to understand this sentence? Two * * * quantitative baselines are not necessarily * * * faces? A vector parallel to the same plane is called a * * * vector.

It can be understood that the phasor that can be translated to the plane is the * * * orientation vector.

It is correct that two * * * directional baselines are not necessarily * * * planes.

2. Any two space vectors are always * * * plane.

In other words, they can always move to the same plane by translation. This sentence is also true.