I think 7C is the normally mentioned performance cutoff point for summer/winter tires. Apparently some insurance policies actually specify times (November 1 to April 30 I heard someone mention was common here in Ontario).
My inclination would be to use summer tires unless your insurance specifies otherwise.
My entirely unprofessional opinion would be (weather permitting i.e. not snowing) to switch to your summer rubber.
Winter tires are like driving on marshmallows and the exercises you will be taking part in would be better suited to a non-winter tire (all season/summer performance). You’ll get better feedback/confidence on car behaviour and your perception of what the car is doing.
It often ends up raining anyway. Have fun! And any other questions ask away.