Henderson Riley is known affectionately by Mr. D Math students as Mr. H. Mr. H is the director of curriculum and instruction for Mr. D Math and has been a staff member for the past 10 years. He is also a Florida Certified Math Teacher for over 20 years. Students love his style, humor, and ability to communicate math skills in a way that makes a lasting difference for them. As a speaker, attendees enjoy his hands-on presentation style leaving his sessions inspired to be homeschool parents and students. He loves riding his motorcycles in his spare time.