File:Using-an-Abacus-04.png
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Summary
| Description |
English: In the upper image (a) the number 18 is represented in two regions (rods); one of them contains 8 counters that are above the subitization limit. To simplify the reading of the abacus we can: either use a different type of counter with a replacement value of, for example, five (b), or subdivide the regions or rods into two zones: one in which a counter takes the value one and the other in which it takes the replacement value five (c,d). |
| Date | |
| Source | Own work |
| Author | Jccsvq |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:12, 14 September 2021 | | 490 × 376 (22 KB) | Jccsvq | Uploaded own work with UploadWizard |
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