Meet the twins and learn all about irregular plural nouns in an interactive PowerPoint or Google Slides adventure! Six printables (two posters, three worksheets, and a flippy book) are included to reinforce and consolidate new grammar concepts. Perfect for students in 1st, 2nd, or 3rd grade.The interactive slideshow teaches the formation of irregular plural nouns, including the spelling patterns, such as f to ves, y to ies, and nouns that stay the same in plural form. Animated examples show how