I listened to Mr. Wang's open class in Grade Two: Understanding Line Segments. From the classroom, the relationship between teachers and students is harmonious, the teachers have clear ideas, the teaching attitude is natural and steady, the teaching is orderly, and students are interested in learning. Teachers pay attention to the infiltration of mathematical thinking methods while students learn knowledge, and cultivate students' hands-on operation ability. Generally speaking, it is a very successful math class. I mainly talk about my own experience from the following two aspects.

Advantages: In the process of "drawing line segments", the teacher allows students to experience line segments from intuitive lines to symbolic lines, feedback the line segments drawn by students for the first time, find out the shortcomings, and then demonstrate them with nursery rhymes, so that students can draw the correct line segments again and gradually master the skills of drawing line segments. After the students draw the correct line segment again, show them different drawing methods, such as horizontal drawing, vertical drawing, oblique drawing, long drawing and short drawing ... Finally, they can check each other at the same table to see if the drawing is correct. Let students realize that line segments can have different directions and lengths, and deepen their understanding of line segments.

Disadvantages of this class: the schedule in front is a little loose, which makes the time behind tense. Teachers in the classroom-must.

Leave enough time for children to finish their homework. Mathematics is different from Chinese. China students have a short time, and their writing may be poor.

Not very good.