From your studio schedule, click the Instructors panel:
Now look at the link in your web browser:
On the end of that URL, add this text:
So now your URL looks like this:
Copy that link and paste it into an iframe. That simply means adding text as bookends to your link. Your link should look like this:
<iframe src= "YOUR LINK HERE"></iframe>
Copy and paste the complete iframe link into your website content management.