Ⅱ.教学计划 This chapter will cover 3 hours.2 hours for the introduction of background information and explanations of terms and the texts.And the other 1 hour for discussion and practice. 数更价首5大4II. 教学计划 This chapter will cover 3 hours. 2 hours for the introduction of background information and explanations of terms and the texts. And the other 1 hour for discussion and practice