This is a ESL/EFL class for children. Whiteboard and electronic blackboard are set up in the classroom to update the content, which includes multi-media teaching and provides students with learning content not limited to words and pictures. For the course objectives, the teacher will guide the students to open the textbook and tell the students the learning objectives. In class, the teacher will ask questions and guide students about the learning content provided by the teacher. However, due to the large number of students in the class, not every student has the same opportunity to speak. Teachers also encourage students in the process of learning and asking questions. For class activities, not all students respond, some students are more active. Generally speaking, the atmosphere of the class is quiet and passive, and students will answer questions after the teacher asks and gets permission from the teacher. What is special is that there are two teachers in this class. In the dialogue section, the two teachers can provide cases to the students with practical dialogues. In addition, teachers give students opportunities to practice in groups and ask questions randomly to consolidate their knowledge. Meanwhile, teachers will repeat what they have learned to help students strengthen their memory. By asking questions, teachers guide students to review what they have learned. Teachers integrate students’ English learning skills by guiding students to speak and connecting with groups. Teachers also set up games to mobilize students’ participation and help them focus. From this observation, I learned that teachers could not take into account the learning situation of each student with a large number of students in the class, so there may be differences in the learning level of students. If I were a instructor, I might add several different types of group activities or group learning in the class, and guide or correct each group separately, or I might give less spoken students some opportunities to speak.