English letters can be written in 2 sizes, small and big.  Small letters are called Lower-case letters. Big letters are called Upper-case letters. We use Upper-case letters when writing people's names, or at the beginning of a sentence (More on that later). Please point to each letter below and say if it is lower or upper case, and then say its name. Example: for the first one, point and say, "Lower-case 'a'", point and say  "Upper-case 'A.'" Practice this until the student can go through all 26 letters and identify lower or upper case. If you forget the names of the letters, please go back to Lesson 1.