A fun way to learn to spell. 🙂 An LCD will display 4 options for a word, among which only 1 would be correct. There would be 4 buttons from which any 1 can be selected. A green LED would glow the right answer and red LEDs would glow for the wrong answers. After a particular time, the LCD will be refreshed with new set of 4 words.
Have a nice time 🙂