This program – really a collection of programs – starts with a set of vocab called a ‘list’ and then puts each in a sentence, so you learn the word in context. For example, Japanese Core 2000:Step 1 teaches you 200 basic vocab in the context of sentences. It goes up to Step 10 - learning 2000 vocab in all (but probably in reality more, as you learn them in the context of a sentence, and therefore, along with other words).
There are other tools on IKNOW like Brain Speed (which simultaneously melts your brain and makes you really good at picking up vocab fast) and Dictation (which tests your listening skills – probably the hardest thing in Japanese).
