These diphthongs no prep printables set with ou, ow, oi, oy, au, aw, oo words were made to make practicing phonics skills fun and engaging for young students. This word study resource focuses on diphthong vowels within words. These word work worksheets were made with kindergarten, 1st grade, and 2nd grade students in mind. No Prep worksheets are a great way for you to allow students to review and have enrichment while making it easy on you! Using these no prep sets will help reduce prep time a