Backward Design

My favorite part about backward design is focusing on the big idea.  It has really helped my students to make connections to the different things we are doing and reading.  It has been enjoyable for me to spend more time building background knowledge with them and engaging them in meaningful conversations.  I feel that I have been more intentional with what I am doing with my students.  I feel that my lessons have been very meaningful.

Questions:

1. I have many students who want to share their background knowledge with the class.  Do you have any suggestions on keeping this sharing to a reasonable time?

2.  How can I get my struggling students to answer higher level thinking questions?