Questions for those who’ve completed/created the course:
I think it would be helpful if there were a few exercises that helped us pinpoint the differences between “lookalikes”.
For example: So far I’ve come across three kanji that look like a box within a box. If I could see all three together in one exercise, it would be easier for me to differentiate between them later on.
Are there any exercises that focus solely on similar looking kanji later in the course? I’m on level 7 now, 1 crown per up to ‘Market’.
Ah; I see. Whether a box is complete matters considerably, as do hooks on strokes and extraneous little strokes in the corners. The 'box' around '问' is the simplified/cursive variant form of '門'. It might help to familiarise yourself with all the possible strokes (there aren't that many), whereupon it will be more clear that '问' contains this hooked stroke (which DL won't let me type for some reason).
'向', '同' and '何' also look vaguely similar; all are common characters, although I don't recall if they're all in the course. It always helps to break characters down into familiar component parts rather than simply trying to 'absorb' them.
Slime Forest Adventure is a game for drilling the Japanese kana and kanji using a spaced repetition algorithm.
It contains an interesting mechanic which could help with lookalikes. Whenever you make a mistake, it will immediately throw the kanji that you mistook it for at you as well. Now you have to differentiate between them.
Just thinking out loud here, but perhaps something similar can eventually be added to Duolingo. When you mistake a word/kanji for another then the next question could be a sentence that tests that other word.
Another thing that it does, which should be possible with the current Duolingo features is grouping similar looking kanji into the same "lesson". It really trains your ability to differentiate them.
This is posted in the Chinese forum but talks about kanji. I thought they were called hanzi in Chinese.
I don't remember coming across lessons focusing purely on similar looking Chinese characters. That indeed should be considered as assorting, distinguishing and associating similar items can help build up one's memory. Here are a few characters besides the two already mentioned by other folks, which look like boxes more or less. Not sure if the one you were looking for is among them.
日 (day; the sun) | 白 (white) | 目 (eye) | 月 (month; the moon) | 间 (between; gap; room) | 面 (face; noodle).
I was thinking they should create the lessons "Hanzi 1, Hanzi 2, Hanzi 3...etc." and scatter them throughout. They could focus on visually similar characters or train you with characters with the same syllables but different tones. An example exercise could be matching characters shown with only a sound given, instead of visually matching with the pinyin.
I don't know if any of the lessons down the line introduce some of the alternate pronunciations of some characters, but that would be interesting as well.