Vocabulary consisting only from characters you are able to read
練る
neru
(1)to knead, to work over, (2)to polish up (e.g. a plan), (3)to drill, to train godan, verb, vtrans
説く
toku
to explain, to advocate, to preach, to persuadegodan, verb
課
ka
(1)lesson/ (2)section (in an organization)/division/department/(ctr) (3)counter for lessons and chapters (of a book)/(P) leda1
種類
shurui
(1)variety, kind, type, category, (ctr) (2)counter for different sorts of things jlpt3, mix
種々
shuju
variety; varietymix
観察
kansatsu
observation, surveysuru