My mystery number
- My Mystery Number.pdf - 282 kB
- My Mystery Number.docx - 257 kB
| 标题 | My mystery number |
| 描述 | This activity focuses on understanding numerals as representing objects or sets of objects. It addresses the distinction between using place value and not using place value. For example, in the image above, 1 and 2 are placed next to each other. This means that one puppy and two puppies are hiding. The total number of puppies hiding is three, not twelve. |
| 科目 | 数学 |
| 等级 | K-5 |
| 类型 | 指导活动, 示范 |
| 持续时间 | 30 分钟 |
| 是否包含答案 | 否 |
| 语言 | 英语 |
| 关键词 | 1:1 correspondence, cardinality, counting, place value |
| 仿真程序 | 数字游戏 (HTML5) |
| 作者 | Ian Whitacre, Dom Carorora, Azar Kamaldar |
| 学校/组织 | Florida State University |
| 提交日期 | 23-9-11 |
| 更新日期 | 23-10-14 |