Put the items in order!
Select an item, then choose a slot. You can also drag items into slots.
๐ Current session summary
Mastery is a configurable teaching rule, not an official ABLLS-R criterion.
First-attempt accuracy by trial
Trial data
| # | Goal | Items | First | Final | Prompt | Errors | Latency | Status |
|---|
๐ Previous sessions
Session records are stored in this browser only. Export backups regularly.
| Date | Learner | Goal | Completed | First accuracy | Final accuracy |
|---|
โ๏ธ Custom seriation items
Build a custom sequence. Enter a label, visual symbol/emoji, and numeric order value. Lower values come first when ascending is selected.
Use distinct order values and ensure the displayed symbol matches the intended item.
โ How to use
- Enter a learner ID and choose a goal, item count, direction, and trial count.
- Press Start session. Items appear in a randomized order.
- Click an item and then click a slot, or drag the item to a slot. Use left/right buttons to reorder placed items.
- Press Check answer. First-attempt accuracy is recorded separately from final accuracy after correction.
- Use Dashboard for data, charts, reports, and exports.
- Use Custom items to define your own visual sequence.
Data privacy: data is stored in local browser storage and is not uploaded to a server. Anyone using the same browser profile may be able to access it. Do not enter unnecessary sensitive information.
Interpretation: This app is an independent teaching aid. It does not reproduce official ABLLS-R materials, and its configurable mastery target is not an official criterion.
Known limits: Emoji graphics may render differently across devices. โPhysical promptโ is a data-recording label only; the app does not provide physical prompting instructions. This local app does not synchronize data between devices.