A tremendous amount of research went into our English Grammar Posters! The line was created in response to requests from teachers who are working with students of all ages and backgrounds. Some are striving to help their students meet Common Core or State Standards. Others are trying to help their students become fluent in a language that isn't their native tongue. Before finalizing each poster, it was reveiwed by a team of self-professed "grammar geeks" ranging from elementary school teachers to college instructors. We also consulted with the English Language Development Director from one of the largest public school districts in the country and a professor at Seattle's highly-regarded Teaching English to Speakers of Other Languages (TESOL) post graduate program — a cooperative venture between Seattle University's College of Education and the School of Teaching ESL.