By Stage 12, audio is played at 240–260 words per minute. Average BBC News is 170–190 wpm. Complete graduates find that native speakers finally sound "slow."

In a typical Callan lesson, a question (e.g., "What did you do yesterday?" ) is asked, answered by the student, and then repeated again 5 minutes, 20 minutes, 2 hours, and 24 hours later within the lesson cycle. By the time the student finishes the course, they have answered each core question over 50 times.

You will not enjoy every minute. You will feel stressed and exposed. And then, around Stage 9, English will cease to be a subject you study and become a tool you simply use .

Students are listening or speaking for nearly 100% of the lesson time, which is roughly four times more than in a traditional classroom.