I wrote an article summarizing my experiences teaching Linguistics to high school students, and it was published in the "Teaching Linguistics" section of Language in December 2014.
Abstract:
This
article details a high school English teacher’s experiences teaching a
semester-long elective course on linguistics to tenth, eleventh, and
twelfth grade students in Milwaukee, Wisconsin. Students explore units
covering an introduction to linguistics, phonetics, morphology, language
acquisition, sociolinguistics, and the history of English. The article
reviews related primary and secondary school projects that have been
done in the United States and abroad, the curriculum of this specific
survey course, successes and challenges encountered while teaching, and
recommended resources relevant to secondary school students and their
teachers.
High School Linguistics: A Secondary School Elective Course