Hi Elizabeth, great question! A few suggestions:
I would invest in a comfortable set of bluetooth headphones or earbuds. This will allow you to move throughout the room and allow those students that are learning remotely to be able to hear you. Here's a good pair to give you an idea:
The built in recording software in Zoom works well if you are wanting to record your sessions. It does take a long time for Zoom to process the video if it is a longer video, so be prepared for that. Yesterday, I recorded an 8 hour Zoom session and it took about an hour for Zoom to process the video. Loom is a free recording software and processes videos much longer. Here's a link to their website where you can sign up for a free educator account: loom.com/education
You also might review my cheat sheet on Zoom security settings as well and just double check those.
I hope this helps! Please let me know if you have any other questions :)