UNIT 1 Lessons 1~6。 <p class="ql-block">Lesson 1 Hello !</p> <p class="ql-block">Lesson 2 Boy, Girl and Teacher</p> <p class="ql-block">Lesson 3 How Are You ?</p> <p class="ql-block">Lesson 4 Numbers 1~5</p> <p class="ql-block">Lesson 5 How Many?</p> <p class="ql-block">Lesson 6 Numbers 6~10</p> <p class="ql-block">Again, Please!</p>