I think I should greet students and in a relaxing way before the class and create a comfortable environment for them. Reviewing the previous knowledge by asking students a question would motivate them to think. I gave students a few time to think after asking the question and elicit ideas from class, but I think the time is not enough. When assigning the group work, I did not notice if students have their partners and are able to talk in groups. I think I should specifically pay attention to that. When several students are sitting alone, I should let them sit together rather than work alone. During the group work, I should find various ways to interact with students instead of waiting for them to finish. I should ask students how they think about the exercise and see whether the practice is below or beyond their knowledge levels. When I need to restate the instructions  after they have already started their discussions, I did not get their attention first and ensure they can notice or hear me. I need to consider some ways to have their attention. For example, say “hello” to draw their attention. I should try to use a “teacher voice” when giving instructions. When I check whether students can understand the questions or ideas, I should ask them a specific question about them instead of simply asking “are you clear?”. Having students to answer the questions by themselves would be helpful to elicit ideas. I need to be careful to use the projector and ensure students are able to clearly see the materials. I also noticed that I should pay more attention to my questions and ensure each student is able to understand the meaning of my question. I should make notes on my handout before the class and avoid mistakes in teaching.