Foundational Skills: Fun, easy, and no-prep way for students to practice diphthongs! This BUNDLE gives you access to 8 decks of digital task cards on diphthongs with the au, aw, oi, oy, ou, ow, and long & short oo spellings on the Boom™ Learning website. All cards have audio. Boom™ Cards work on a laptop, desktop, Chromebook, tablet, or any other mobile device that can access the internet. They can also be used as a whole group activity using your interactive screens or projectors in class.