It is good as the "Back to School" activity and can be also used to review topical vocabulary. I give that to my students and they write the words beginning with the letters of the ABC. Sometimes we play a game. Kids have some minutes to write the words, then we read the words in turns. If someone has the same word it should be crossed out. The winner is the kid who has the longest uncrossed word list.
It can be used as a homework aswell