Hi GP,
Yes, if you buy Semester 1 now, you can upgrade to Semester 2 later on. You will see the upgrade options available for you when you go to the BrillKids Online Store's "Upgrade Offers" section (from the left-hand navigation menu) as soon as you finish checking out with your Semester 1 purchase.
The lessons in the Little Reader trial are the actual lessons for Days 1 to 9 of the full curriculum. This means you may simply continue from the Day 10 lesson once you've set up your licensed Little Reader (if you buy Little Reader after finishing the trial).
I've sent you an email from our support[at]brillkids[dot]com email address with more details about your two questions. Kindly check your inbox for that one.
I hope this helps!
