What is the 15/30/15 method?

What is the 15/30/15 method? It's a simple daily study routine: 15 minutes reviewing what you learned before, 30 minutes on new material, then 15 minutes reviewing again before you stop. The idea is to spread your contact with the language across the session instead of cramming it into one block, and to bookend the new material with review so it sticks. It's a sensible structure for an hour of study, not a research-backed method or a shortcut.

Why the shape helps: opening with review warms up what's already half-learned, the middle block is where you actually add new words and patterns, and the closing review catches that new material while it's fresh, right before you'd start to lose it. That last part is the same reason spaced review works, just inside a single sitting. You don't need exactly 15, 30 and 15. The point is to review, learn, then review again, and to keep the whole thing to something you'll repeat tomorrow. A shorter daily habit you keep beats a long one you abandon.