What do you use for Sunday School Curriculum / Teaching Materials? Why did you select it? What are the pros and cons of various options? How did you conduct your research (the last time a decision was made to switch to a new curriculum / materials)? I'm hoping the views on these questions are not as varied as 'what style of music do you like in the worship service', but I am hoping to understand the reasons why people like different materials. Please bear with each other's opinions and preferences if opinions vary. The goal is not to convince each other that one set of materials is "best" but to inform each other why a given curriculum works to support certain aims and objectives.