Course Forum.
Vocab from the text book 学ぼうにほんご 初中級 vol 3 (manabou nihongo lower intermediate).
The memrise lessons are organised by chapter, with three lessons per chapter pairing kanji and definition, kanji and hiragana, hiragana and definition.
http://www.memrise.com/course/74619/manabou-nihongo-lower-intermediate/