It's hard to run an inquiry-based classroom. Don't go into this teaching style thinking all you do is ask questions and observe answers. You have to listen with all of your senses, pause and respond to what you heard (not what you wanted to hear), keep your eye on the big ideas as you facilitate learning, value everyone's contribution, be aware of the energy of the class and step in when needed, step aside when required. You aren't a teacher, rather a guide. You and the class find your way from question to knowledge together. Because everyone learns differently.
You don't use a textbook. Sure, it's a map, showing you how to get from here to there, but that's the problem. It dictates how to get 'there'. For an inquiry-based classroom, you may know where you're going, but not quite how you'll get there and that's a good thing. You are no longer your mother's teacher who stood in front of rows of students and pointed to the blackboard. You operate well outside your teaching comfort zone as you try out the flipped classroom and the gamification of education and are thrilled with the results.