Each Callan Method course is divided into several parts, or Stages. Each Stage contains a carefully selected range of grammar and vocabulary, from the most basic in Stage 1, to increasingly advanced in the following Stages. Stages vary in length, so each Stage will take a different number of lessons to complete. For example, to complete Spanish Stage 1 you will need to take about 35 lessons; for Spanish Stage 6, you will need up to 55 lessons.