# Models, sources and genuinely empty own spaces

Ordinary accounts are supplied teaching models. Each has a complete matching description. Fresh source givens, learner response spaces and staff keys remain separate.

| Aid | SVG | Full description | Role |
| --- | --- | --- | --- |
| a-first-source | [View](aids/a-first-source.svg) | [Description](aids/a-first-source-alternative.md) | fresh-source |
| a-later-source | [View](aids/a-later-source.svg) | [Description](aids/a-later-source-alternative.md) | fresh-source |
| b-first-source | [View](aids/b-first-source.svg) | [Description](aids/b-first-source-alternative.md) | fresh-source |
| b-later-source | [View](aids/b-later-source.svg) | [Description](aids/b-later-source-alternative.md) | fresh-source |
| c-first-source | [View](aids/c-first-source.svg) | [Description](aids/c-first-source-alternative.md) | fresh-source |
| c-later-source | [View](aids/c-later-source.svg) | [Description](aids/c-later-source-alternative.md) | fresh-source |
| d-first-source | [View](aids/d-first-source.svg) | [Description](aids/d-first-source-alternative.md) | fresh-source |
| d-later-source | [View](aids/d-later-source.svg) | [Description](aids/d-later-source-alternative.md) | fresh-source |
| open-ten | [View](aids/open-ten.svg) | [Description](aids/open-ten-alternative.md) | ordinary-aid |
| own-check | [View](aids/own-check.svg) | [Description](aids/own-check-alternative.md) | fresh-own |
| own-parts | [View](aids/own-parts.svg) | [Description](aids/own-parts-alternative.md) | own-aid |
| teen-parts | [View](aids/teen-parts.svg) | [Description](aids/teen-parts-alternative.md) | ordinary-aid |
| ten-parts | [View](aids/ten-parts.svg) | [Description](aids/ten-parts-alternative.md) | ordinary-aid |
| three-parts | [View](aids/three-parts.svg) | [Description](aids/three-parts-alternative.md) | ordinary-aid |
| transfer | [View](aids/transfer.svg) | [Description](aids/transfer-alternative.md) | ordinary-aid |
| whole-parts | [View](aids/whole-parts.svg) | [Description](aids/whole-parts-alternative.md) | ordinary-aid |

Original SubjectNest teaching and drawings © NeuroForgeIO Pty Ltd 2026, [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Credit SubjectNest by NeuroForgeIO Pty Ltd, version 0.1.0, source and licence; note changes. Curriculum and provider rights remain separate.