If I want to learn Arabic, should I try learning English in Arabic on Duolingo?
I do not speak any Arabic currently and would be starting from scratch.
Hmm... I hadn't thought of that problem because I'm intermediate in Arabic, but if you know the interface really well it might still work out for some people.
You have to learn the alphabet before trying to do Arabic by laddering or reverse-tree on Duolingo and if you are familiar with the alphabet and text-direction and can look up words if you need to in order to open the right tab, then it shouldn't be too intimidating, unless you're new to Duolingo, IMO.
No. You already speak English, so parts of it will be a waste of time. what you SHOULD do is do the FRENCH from ARABIC course, I can see you have already started French so you must be interested in French to some degree. Do the Arabic <> French course and when you aren't learning Arabic you will be practicing French, which is useful, instead of practicing English, which is a complete waste of your time.
I am so excited to get moving along the Arabic <> French tree now that they made it practical to access all courses!!!! =D
This is a strange response. Level 7 would not, barring substantial prior knowledge, be enough of a base to contemplate something like this. Standard procedure for reverse trees is to turn off the listening and speaking exercices, and you'd probably want to add the reverse tree enhancer userscript (can't remember if it's updated yet for the new website), which makes the experience much more like a conventional forward tree.
Oh but one important thing, You mentioned you are learning from scratch,
You have to learn the alphabet first. Use Memrise for the Arabic alphabet (it teaches the alphabet well and then everything else is terrible) and then after you learn the alphabet come to Duo for the Arabic <> French course, which requires you to already know the alphabet.
No, it wouldn't be a good idea to try to learn Arabic by doing the English from Arabic tree. I know some Arabic and I have found it extremely challenging. I only started it to see what my students were learning. I am very interested in improving my Arabic grammar, but I just found it too difficult to continue. I occasionally do the free daily lessons on Mondly. It seems to be a nice app. If you paid for all the lessons, I think that it would probably be worthwhile.
Mondly is a useful site similar in many ways to Duolingo. I joined it a couple of years ago and it cost me a one off payment of approx $15 for all lessons and all courses for a lifetime access. I see that this is now about $100 although you can get shorter membership deals for less.
If you can afford a lifetime membership I would recommend it but the free account is really only useful to evaluate the software as it only gives you access to the first few lessons and not the full course.