Biogeography is a vast field of study and narrowing down your topic can be daunting. Searching for "biogeography" and related topics in a reference database can help you get to know the possibilities. The following resources are guaranteed to have resources that will help you find a topic.
A mind map is an effective way of organizing your thoughts and generating new questions as you learn about your topic.
Who? What? When? Where? Why?
We can focus our ideas by brainstorming what interests us when asking who, what, when where, and why:
Who? special education students, elementary students
What? flexible seating, classroom management
When? Past ten years, past five years, Mid-1990's to Present
Where? elementary schools, integrated classrooms, middle schools
Why? focus, improved test scores, less disruptive
Research Question: Does flexible seating in an elementary classroom improve student focus?
The following tutorial from Forsyth Library will walk you through the process of defining your topic.