From their website:
Join Donald S. Whitney for a free, 5-day email course designed to teach you how to lead your family in worship every day. You’ll learn the 3 key components of family worship and practical tips designed to help you actually make it happen on a daily basis—taking the mystery out of leading your loved ones in worshiping God together. After the course is over, you’ll continue to receive encouraging, gospel-centered content delivered directly to your inbox once a week—helping you walk closely with God each and every day.
It is free to sign up for these short video based lessons. They do require your email address to signup. I think this is a valuable family worship resource from one who has thought much about family worship and practiced it in his own home for many years. Make use of this to enhance your own family worship.