To be concrete, the teaching content of this class is ‘Fish Swim freely in Water’, which mainly focused on making the effect of fish swimming around in Scratch. Initially, Ma Hong showed a video for students to observe how fish swim in the water, after which he led the students to analyze the specific swimming state of the fish step by step and converted it into the Scratch programming language. More remarkably, Ma Hong fully aroused students' interest in learning, guided them to think and create ideas, and led them to analyze and understand the principles of programming, thus highlighting the principal position of students and the leading role of teachers.

In summary, this lesson opened the prelude of the demonstration lessons of the famous teachers in Science and Technology Group. Additionally, in the next teaching activities, the teachers of the Science and Technology Group will stick to the main position of the classrooms, continue to practice and reflect, feel in reflection, innovate in perception, and grow in innovation!