This set of real-world grammar mistakes is an excellent engaging activity for middle or high school English students as for bell ringers, grammar practice, review, or just for fun during Thanksgiving, the Christmas holidays, and the New Year! I've collected mistaken-ridden posters, tweets, signs, etc. to keep things interesting - and to provide plenty of examples!Allow students to take ownership of their learning and make connections to the world around them. Students love to spot errors in th