Does the Irish course end at level 10?
So I'm very new to duolingo. I got as far as level 10 in the past few days as my Irish just needed a quick tidy up, but I can't seem to go any further. How do some people have a level 15 and 25 beside their Irish icon? The last thing that shows up for me is 'business' vocab.
Levels aren’t representative of which skill you’re currently learning; levels only represent the expenditure of effort. Someone with sufficient stamina could repeat the Basics 1 skill over and over again, never investigating any other skill, until reaching level 25.
If you’ve completed all of the skills (and the Business skill is among the three skills at the end of the tree), then you can increase your level by repeating previous skills, either through the “Strengthen skills” button or by repeating particular skills where you believe that it would benefit you most.
"Levels" are just a measure of how many XP you have earned - after 60 XP, you reach level 2, another 60 and you get to level3, 80 more brings you to 200 XP and level 4, then you need 100 to get to 300 XP, and level 5, 150 more to get to a total of 450, and level 6, and so on.
You can work your way through all of the skills in the Irish Tree with as little as 2,500 XP, which puts you at level 10, though most people take a little bit more time, and scores of between 4,000 and 5,000 XP (level 13 or 14) are more common, and some people do a lot of repetitions, and don't "finish the tree" until level 15 (7,500 XP) or level 16 (9,000 XP).
Level 25 is reached at 30,000 XP. As scilling points out, you could do Basics 1 3,000 times and reach Level 25, but most people at level 25 have actually learned a bit more than that :-). Some of the original languages on Duolingo allowed you to earn XP by working on document translations, in a process called "immersion", but that was never officially available for Irish, and was cancelled for all languages a while back.
If you've finished the tree at level 10, then you might want to try the challenge of Timed Practice, which lets you earn XP at a faster rate, while honing your fast recall skills that you need for actual conversation, or even listening to RnaG or watching TG4. But unless you were already familiar with most of the Irish taught in the later skills, then you should just continue to strengthen the skills that you have already learned, as you will find plenty of additional material - at 3,000 XP, you've only encountered a small fraction of the exercises available on the course.
To add to scilling's comment, you musn't be discouraged! You should get to Level 11 within 6 lesson in Irish.
It doesn't end at 10 (I'm currently 11 in Irish), but I have noticed that past level 10 it starts taking a loooong time to level up. I just leveled up to 13 in French last week, and it says on my profile I need to complete over 1,000 XP to get to level 14 :( That would amount to over 100 practice reps on French alone.