This English lesson plan outlines a 90-minute lesson for 10th grade students on expressions of greeting, leave taking, thanking, and apologizing in English. The lesson includes pre-activities like prayer, attendance, and intro questions. During activities involve exploration through pictures, elaboration of concepts, student practice through role plays and exercises, and confirmation through assessment. Students will learn formal and informal expressions, see examples in dialogues, and do a homework assignment practicing the skills. The goal is for students to correctly use these common social expressions in English.