How do I get a horse to walk calmly forward duing ground work?

How to get this horse to walk calmly during groundwork.

Q. Chelsie, I am working with a new horse (3yo)who has not been ridden. When doing ground work with a rope halter and I try to get him to walk off to the left or right, he throws his head up and just walks backwards, really hard. How can I get him to calmly walk [...]