When you find a better order for presenting Japanese grammar, let me know.
I even had a rant one time because of how frustrated I am with the JLPT order.
How the heck are JLPT N-levels decided?
(heads up, the thread had several interesting comments but also several “less useful” comments)
That said, I would say the following:
JLPT – The most standardized order of grammar, although it seems to be ordered from most-useful-for-foreign-adults to least-useful-for-foreign-adults. As such, they teach polite form before casual form, and leave both extremely formal written language and very casual spoken language as “advanced” topics. The problem (in my opinion) is that you’re basically expected to simply memorize grammar points rather than understand a system of rules.
Tae Kim – The most logical in terms of trying to teach Japanese grammar using a building block approach, where new structures are built on previously learned topics. This system is useful at the beginning stages but falls short at the later stages.
other internet gurus (Cure Dolly, etc) – They usually have attention grabbers like “the real way to learn Japanese”. They have a lot of very good insight into particular aspects of the language but I haven’t seen a comprehensive language-teaching series that is widely accepted or could be used as classroom material.
I think the problem with teaching Japanese grammar is that all of these happen at the same time:
– polite, dictionary/casual, honorific and humble forms
– spoken Japanese vs written Japanese
– Chinese-origin vs Japanese-origin
– classical Japanese vs modern Japanese
– sometimes a blurry line between “verb”, “adjective”, and “noun”.
…All of the above are used together in modern Japanese. So how do you teach grammar that is a mish-mash of several influences? I think it’s similar to trying to explain English pronunciation rules – modern English is influenced by several languages, with different pronunciation rules, and it’s possible to state “rules” but it’s not easy and not straightforward.
…Also, how do you teach both the learner who just wants survival Japanese and the learner who wants to learn everything?
p.s. I’ve also been studying Japanese for years. …I feel your pain.
p.p.s. Just my two cents. I’m sure there’s other opinions out there.