Essentials Curriculum Tour A tour of The Logic of English Essentials curriculum. Logic of English Essentials is a remedial reading and spelling curriculum for students ages 8-adult. This program is designed to teach students the rules and phonograms that logically explain 98% of English words. The program is teacher friendly and enables parents, teachers, and tutors to instruct students while learning the linguistic structure of English alongside their students. This short tour will provide you with insights into the program.