舒尔特方格训练

About

Schulte Grid Trainer is a focused attention and visual scanning exercise tool
based on the classic Schulte table method, widely used in educational and
cognitive training programs worldwide.

HOW IT WORKS
The grid contains randomly arranged numbers. Tap them in ascending order (1, 2,
3 …) as fast as possible. The extension records your time and rates your
performance. Regular practice improves peripheral vision, reading speed, and
sustained attention.

KEY FEATURES

  Grid sizes: 3×3 up to 10×10 — start easy, challenge yourself as you improve.

  3-2-1 countdown: A brief countdown before each session so you are ready to go.

  Precise timing: Millisecond-accurate timer using the browser's Performance API.
  Performance ratings: Excellent / Good / Average / Needs Improvement benchmarks
  calibrated per grid size.

  Multi-profile support: Create separate profiles for each child (name, age,
  avatar). Each profile keeps its own history and achievements.

  Age-aware modes: Kids mode (≤9), Junior mode (10–12), Teen mode (13+) — the
  interface adapts to the child's age.

  Daily streak & check-in calendar: A flame streak counter and a weekly
  check-in calendar motivate consistent practice. Tap the calendar to view the
  full monthly view with training statistics.

  20 achievement badges across three categories — Streak (e.g., 3 / 7 / 30 /
  100 consecutive days), Speed (e.g., beat your personal best, 3 excellent
  ratings in a row), and Explore (e.g., complete all 8 grid sizes, try all 4
  color themes).

  Training history & trend chart: Full session log with a line chart showing
  your last 10 sessions. Filter by grid size.

  Parent report: One-tap summary of training days, session count, streak,
  monthly calendar, score trend, and achievements earned — share progress with
  parents.

  4 color themes: Soft Green, Blue-Gray, Teal, Dark mode.

  7 interface languages: Simplified Chinese, Traditional Chinese, English,
  Japanese, Korean, German, French. Language is detected automatically or
  selected manually.

  Daily reminder (optional): Set a reminder notification at your preferred time
  each day. Can be turned off in settings.

DATA & PRIVACY
All data is stored locally on your device using Chrome's storage API. No data
is sent to any server. No account is required. No tracking, no analytics, no
third-party requests.

PERMISSIONS USED
  storage — saves profiles, training records, settings, and achievements locally.
  alarms  — schedules the optional daily reminder notification.
  notifications — shows the daily reminder if enabled.