He says his way of teaching can help anyone learn how to read and write with about thirty hours of study. To learn his system, people must first know how to write letters of (1)_____________________________. The system divides letters into three groups. The first group of letter can be written between two lines. The second can be written between two lines but part of the letter is above the top line. (2)___________________________. John Mogger taught his students to write simply words from the letters, in this way, his students learned more than seven hundred words. Many of them can now write to family members. (3)____________________________.