Unscramble letters of words then drag the bar down a certain distance. Then tap the sling button to fling smiley to the correctly spelled word. Learn 684 of the most used words in English. This app contains no ads. No personal information is gathered. There is a quit button so the app will not run in the background when you stop playing. State Standard: Demonstrate internalization of English grammar, usage, and word choice by recognizing and correcting errors when reading aloud.