● 30 lessons(1lesson / 25 mins)
⇒Be able to take same lesson more than 1 time
● Test (1test / 15 〜 25 mins )
– Checkpoint test:At least 6 times
– Mid term: At least 1 time
– Final term: At least 1 time
⇒Be able to take tests until you pass
● Period: 12 weeks
*50 USD/month after 12 weeks