![](https://www.pdfsearch.io/img/b098bceb66ebc99b27eda14ab7c24f60.jpg) Date: 2014-12-09 16:29:31
| | Activity 19 The chocolate factory—Human interface design Age group Middle elementary and up. Abilities assumed No specific abilities required.Add to Reading ListSource URL: csunplugged.orgDownload Document from Source Website File Size: 160,85 KBShare Document on Facebook
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