: This is the "heart" of Finnish. Pay extra attention to the partitive case exercises, as it's used for quantities, negative sentences, and ongoing actions.
: Finnish grammar is logical but dense. Doing 15 minutes a day is better than a 3-hour marathon once a week. Useful Resources WordDive / Duolingo : Great for supplementary vocabulary.
: Words for family, home, food, hobbies, and weather.