Open a chapter. Do not look at the grammar notes. Read the Japanese passage aloud. Circle the bold grammar points. Guess their meaning from context. This activates your problem-solving brain.
Short drills follow each grammar point to check comprehension. Step 4: Review and Test.
N5 learners usually quit because they memorize particles in isolation. Try! N5 forces you to see "ni" vs "de" inside a story about meeting a friend at a station. By chapter 15, you will instinctively know which particle fits.