Do you celebrate the 50th day of school with the fifties (50), 90th day of school with the ninties (90) or 100th day of school? How about celebrating the 70th day of school with the seventies (70)? Let's make a 70s craftivity and complete the sorting activity included. If you enjoy this product, please look up the additional activities that include a tens frame, counting sets, beginning sounds, syllables and seventies writing paper.