II Lead-in Activity Discuss in group the following topics Where do you think good ideas come from especially when you are faced with a difficult issue? 2. Tell a story about the birth of great ideas, for example, the birth of great invention, etcⅡLead-in Activity Discuss in group the following topics 1. Where do you think good ideas come from especially when you are faced with a difficult issue? 2. Tell a story about the birth of great ideas, for example, the birth of great invention, etc