TEACHER DIALOGUE AND STUDENTS
Teacher : Good morning students. Students : Good morning miss. Teacher : How are you today? Students : I am fine, miss. How about you? Teacher : I am great. Teacher : Hi Sarah, are you feeling better now? You were sick yesterday, right? Sarah : I am getting much better miss. Teacher : Good. Okay, we will start our lesson. Sunday yesterday we've been talking about atoms. Now we will discuss about Classes and periods in the periodic elements periodic system. Before we start,...