I must agree with nonradio entirely. When I take a trial lesson I conduct it as a bit of fun, straight and level and turns. Sure, if the guy or girl has expressed an interest in doing their PPL we'll take it a little deeper, time permitting. If they sign up for the course though, the next lesson is still 4(I), done properly. As nonradio said, 4 to 9 are the building blocks.
To go back to your original question, PWP, you should not be having to ask it! Your instructor should tell you what the next lesson is going to be so that you can prepare properly. So, take a tip early in your flying training and from your next lesson onwards, make sure that your instructor tells you what to prepare for next time - it's their job. Enjoy your flying, PWP.
Regards, GT.