The Bringing Baby Home Educator Training is intended for those interested in facilitate teaching the workshop to couples. If you are a couple, you do not need to attend with your partner.
You do not need to host with a co-teacher either. For role plays, you can use the video role plays provided in your materials instead of doing them with a partner if you do not have someone to assist.
If you plan to co-teach the course with a peer professional or a partner, they are required to attend the workshop. This means each person should be registered under their own name and email address. Anyone teaching the workshop needs to have access to the material via their Gottman.com account page.