It is a good website to test students' grammar, also could be an extra practices for students. When I tutor students, I use this tools to be a grammar practice. We teach the grammar rules first, but students sometimes are confused the rules. If we give students extra practices, they will figure out the rules and be much more familiar with it.
This website is awesome for playing grammar game. The site provides a variety of interactive games and exercises for total ESL fun. Free ESL fun games here include : Snakes and Ladders, Hangman, Spelling games, Wheel of Fortune, TV Games(Betting Game), Mazes, Memory Games, Matching exercises, Sequencing exercises, Picture Quizzes and more. Follow the links. You and your students will have FUN!!!
Although this is a "store" of quizzes for many children's books, I primarily use it when determining a book's reading level for students. Many books are in this database. It is helpful when setting up a library for elementary students, but also for a parent who is curious about a book their child may be reading...is it appropriate? too hard? too easy? When you search for a title, and it is in the database, you are given its reading level.