Question

1. She goes to a yoga class three times a week.
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What does 'class' mean here? Is it classroom or lesson?
Writeacher
It's held in a workout room and it's considered a session -- could be called a lesson, I guess.

https://www.google.com/search?q=yoga+class&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjitOj77ZPfAhWl7YMKHZcvBNcQ_AUIDygC&biw=1440&bih=703