[Rogozhin]

What I did at Japanese school was encounter kanji in some context (understand how they're used in the context), write them each out ten times (this was checked by the teacher) and take quizzes to assess how much I retained. I also learned a crapload of kanji through manga with furigana.

I think a good way to remember kanji is to try to remember what single kanji generally mean. For example, if you can remember that 生 generally means "life/live", then it'd be easier for you to understand and remember that 生物 is "organism", 共生 is "symbiosis" and 生放送 is "live broadcast".