Hi Reedy and welcome!
No need to take gear to the pre-learners. You need long pants and long sleeve shirt and enclosed footware. They'll supply helmet and gloves and you probably won't go over 20km/hr.
But, seeing as tho you can be on the road as soon as you take that little green certificate to the RTA you may as well get yourself your gear so you're safe from the start, and once you get your ls you'll just wanna ride no matter what gear you have.
So, best to get at least
Helmet
Leather gloves
Jacket (keep in mind summer's coming and hot=distraction which you don't need while learning)
Draggins or eqiivalent (but more protection=better, including leather pants, textile pants etc with armour, or some motorcross armour under jeans)
Boots
If that's adding up to too much $$$ I'd say Helmet - Gloves - Jacket - Boots - Motorcross Knee Protection - Protective Pants is a reasonable order to purchase in.
Enjoy pre-learners mate, and once you're on the road practice practice practice practice EVERYTHING they teach you it's a strong foundation!!