Once you get to Intro, it doesn't make much sense?
So I just got to the "Intro" part in the course after various Hiragana sections.
I quickly ran into this: http://i.imgur.com/DWPYEhx.png
It doesn't make any sense to me. Did I learn this already?
I warmly recommend using Anki flash cards. It's free, and there are free decks available on their website.
It's very user friendly and there is a lot of different decks to choose from. For example I've set mine up to start automatically when I start my PC to make sure I get through all basic kana every single day, then learn 1 new kanji, and then about 20 new words.
The best part is you can make your own decks and cards, so for example if you find something in duolingo that you want to remember, you can add that as well.
Oooh, with one new Kanji every day you will have learned all the Kanji needed in about 6 years... I try 25 new a day, also with Anki and the Heisig method, so atm I am at ~25% and hope to be through with them in under 100 days in total. I can recommend Anki, too, and the cards for the Heisig method are also free downloadable so you are saving lots of time.
I lived in Japan for three years and studied the language while I taught English. Forty years later, I wanted to review Japanese and have been using Duolingo. I seriously CANNOT imagine what it would be like if I didn't already know kana and basic characters. You might want to check other sites. http://www.easyjapanese.org/kataquiz.html
Hmm. Unfortunately the course is not on PC yet so I don't know what lessons they give early on, but I'm a beginner (only had about two weeks of Japanese in total) and was able to figure out the answer, as I recognized all four of the kanji shown in the picture.
While I do not know the meaning of each individual kanji yet, I see them commonly put together in the material I use to study.
For example, in my limited understanding,
日本 = [the country of] Japan (nihon) 日本人 = japanese person (nihon jin)
therefore 人 must be the kanji for person (and pronounced jin, じん, which is what they're asking for. It looks like a pair of legs, easy to remember!
So if the course teaches the words for "Japan" and "Japanese person" this should give beginners three of the four kanji here almost for free. It would also be a good idea to add 日本語 (japanese language) as that's what we are trying to learn, yeah?
As a side note I also noticed that the fourth kanji looks like the first kanji used in "Chinese person" 中国人 (Chūgokujin) which is a word I keep mixing up with the word for various schools.
I hope this helps. がんばってね、 セノさん。