For teachers: moving abacus homework from the workbook to a screen, without losing the real abacus
For teachers who hand out paper workbooks and never see them again.
You can move homework off paper without giving up the physical abacus: the child solves on their own abacus and types only the answer. What changes is the return trip. Paper comes back a week later, marked by you, with the mistake already practised seven more times. A screen marks it that evening, keeps the *type* of mistake for you, and can generate tomorrow's set from it. Everything else, the beads, the posture, the counting out loud, stays exactly as it is.
What the workbook does well, and what it does not
The workbook is cheap, needs no device, and the child can see a week's work in one place. Keep those qualities in mind, because a bad digital switch loses them.
What the workbook cannot do:
- Tell you *which* problems were done, and when. "All done" on Sunday night at 9pm is a different thing from ten minutes a day.
- Mark itself. So marking waits for you, and the lesson starts with marking instead of teaching.
- Record the mistake type. A tick and a cross in the margin does not survive to next month.
- Change tomorrow's problems based on today's errors.
The one rule: the abacus stays on the table
Most digital tools put beads on the screen. For home practice this quietly replaces the skill you are teaching with a different one (tapping), and the parent cannot tell the difference. Choose a tool, or a way of using a tool, where the screen shows the *problem* and takes the *answer*, and the beads are the ones on the desk. If a tool only works by tapping on-screen beads, use it for flash anzan and keep the workbook for everything else.
A homework set that works on a screen
| Workbook habit | Screen habit | |
|---|---|---|
| Amount | One page, 20โ30 problems | 5 problems per subject, about 10 minutes |
| Timing | "By next lesson" | Same time every day, 5 days a week |
| Content | Current level only | 3 of last lesson's mistake type, then the current level, then 2 minutes of flash anzan |
| Marking | By the teacher, next lesson | Automatic, the same evening |
| What you see | The page, a week later | Which days were done, and the mistake type per problem |
| Parent's job | Check it was done, sometimes mark | Say "abacus time" at the agreed hour |
The amount goes *down*. This surprises teachers. Ten minutes a day gets done five times; a page gets done once, on Sunday. Spaced repetitions separated by a day are what stick.
The two-week switch
Week 1: parallel. Hand out the workbook as usual. Also set the five-problem daily set on the screen. Tell parents it is a trial and takes ten minutes. At the next lesson, compare: how many children did the workbook, how many did the daily set, and which gave you something useful to teach from.
Week 2: screen only, workbook as backup. Keep a few paper sheets for families with no device or a broken phone that week. Start the lesson from the mistake types the tool collected, not from marking.
What to say to parents, in one message:
> Homework is now ten minutes a day on the phone or tablet, using your child's own abacus. Please do not teach or mark anything; just pick a time and say "abacus time". I see the results and deal with mistakes in class.
Families who do not do it
The same three as with paper, and the screen makes them visible instead of invisible:
- No fixed time. Ask the parent to pick one and tell you what it is. "Before dinner" solves most cases.
- Too hard. Drop the level by one or two for a month. A child who gets eight out of ten will come back tomorrow; a child who gets three will not.
- Device problems. Keep the paper backup. A browser-based tool that runs on any old phone avoids most of these; a tool that needs a particular tablet creates them.
What this looks like in practice
In Soroban Kingdom the child practises on their own abacus and types the answer; the app marks it, shows the likely wrong bead move as a picture, and the teacher's screen collects the mistake types across the class so the next lesson can start from them. The levels (20th kyu to 10th dan) can be matched to your own ladder, and it runs in a browser on any phone. The two-week plan above works with any tool that keeps the abacus on the desk.
You learn far faster by moving the beads than by reading. In Soroban Kingdom, levels 20โ16 are free forever with no sign-up, on any phone or computer.
โถ Open Soroban Kingdom