Price tags aside, authentic Japanese cooking classes are rather difficult to come by in North America. As a result, I take most of my cooking "lessons" through parents, imported recipe books and YouTube. The latter is especially effective when it comes to treating different types of ingredients with proper tools.
Below is my personal playlist on YouTube where I save short clips related to Japanese home cooking. There will be more to come as I find them. Note: if you are interested in learning more about a specific clip from the list, I would be happy to provide quick translations.