Hi,

Where in the admin panel do I create my multiple profiles using Easy Profile? I can not find that feature.

you can manage this with condition, example:
Pro and basic members have a select field so they can set this condition
- if select field equal to custom value "student" show Students fields and add to Usergroup Students
- if select field equal to custom value "teacher" show Teacher fields and add to Usergroup Teacher

Also one field 'school name', will be used in both the teacher and student registration. Is that possible to share the same field?

In the previous example "school name" field will not be affected by condition, so this field is always visible.

I want to create a registration page for a TEACHER and a separate registration page for the STUDENTS.

If you want separated form you can use condition with same way of previous example but you need to use a hidden field instead a select field.
You can manage default value of hidden field with URL parameter, see at https://www.easy-profile.com/docs/27-set-default-value-in-registration-from-url.html