The problem of drawing parallelogram in primary school

I think this question should be discussed from the purpose of the questioner and the grade we are studying.

As we all know, rectangles and squares belong to parallelograms. But as a drawing problem, we should not only examine students' mastery of concepts, but also examine students' drawing ability. The drawing method of rectangle or square can be the same as that of general parallelogram, but it can also be different. According to the characteristics of angle, you can draw a rectangle or a square, that is, a right angle, even if you can't draw parallel lines. Parallelogram pays more attention to the examination of parallel lines. If the topic "Drawing a parallelogram" is in the fourth grade, it is incorrect for students to draw rectangles or squares, and points should be deducted appropriately; If it is grade five or six or junior high school, it goes without saying that it must be correct. I don't know what the questioner's intention is. In primary school, I only knew that parallelogram (generally speaking) is more difficult to draw than rectangle or square.

As for the latter topic, it is not the same as painting. "Which of the following figures is a parallelogram?" Rectangular, square and ordinary parallelogram should be colored. This is not contradictory to the rectangle and square we studied before, because both belong to special parallelograms. The arrangement of primary school mathematics, many of them are from special to general. Take these for example. The first thing that appears in the textbook is a rectangle, with no definition and no concept. They often use metaphors to let students know their characteristics. When they reach the parallelogram, they begin to define them, and let the students re-understand the rectangle and the square, and find that both the rectangle and the square have the characteristics of parallelogram. Moreover, the examination point of this question is completely different from the previous question, mainly aimed at students' logical thinking.

Time relationship, not much to say. I am a primary school math teacher, and I wasted 2 1 year in my teaching.