Can-do goal

You can hear, read and type さ・し・す・せ・そ without answer choices.

ひらがな基礎：さ行

Click each character, listen, and imitate the sound. Then cover the romaji and retrieve it from memory.

Pronunciation focus

し is shi, not si. The vowel in す is often lightly devoiced in natural speech.

Form and handwriting

• さ: the printed lower loop is often open in handwriting.
• し: one rising curve from upper left to lower right.
• す: centre the loop and let the final curve descend.
• せ: the short vertical crosses the horizontal before the final stroke.
• そ: learn the standard two-part structure despite font variation.

Write each character slowly three times, then once from memory. Compare structure and stroke direction rather than decorative font thickness.

Mixed retrieval

The practice screen mixes roughly 70% current targets with 30% characters from mastered earlier groups. Practise both directions: character to sound and sound to character.

Mastery task

Complete recognition, listening and active recall practice. Each mode requires at least five attempts and 80% accuracy. Review the group again tomorrow before treating it as stable knowledge.