CiTeachers provides structures and vocabulary designed to use throughout a year. It also provides culture lessons and video of teachers demonstrating the chosen structures in the class with real students. The speed at which teachers go is different. I tend to do 4 structures a week with a review week that includes a formative assessment and culture lesson every 6 weeks (included in the web site). Others may choose to do 4 structures (one week) in a 2 week period depending your style of teaching, age of your students and how often you see your students.