Drill and Practice is to review the content background knowledge, and to assist students to master their language skills such as reading, listening, etc. Providing stimulus, receiving active response from the students, and giving immediate feedback are core steps of this program. The questions will be repeated many times, as well as an explanation on why the answer is correct or incorrect is available. The function of drill and practice is to provide appropriate practice and students can use their background knowledge of the lesson in order to answer questions as well as solve problems effectively.