学習戦略、記憶定着のシステム、そしてより良い学習習慣を構築するためのプロダクト思考。
Spaced repetition is the most evidence-backed technique for long-term retention. Here is how it works, why it matters, and how to use it without burning out.
The CEFR framework defines six proficiency levels from A1 to C2. This guide explains what each level means in practice, not just on paper.
Using the same exercise format repeatedly leads to pattern matching, not learning. Varied practice builds transferable skills across listening, reading, writing, and speaking.
Spanish is one of the most accessible languages for English speakers. This guide covers what to learn first, common pitfalls, and realistic timelines.
A practical system for balancing review, exposure, and speaking without burning out.