一项有趣的活动，学生扫描QR代码在教室里进行三位数的寻宝游戏。
使用此交互式教学资源sin the算术classroom when exploring 3-digit位置值。
学生在平板电脑上使用QR码扫描应用程序来扫描每个QR码海报，以揭示一个线索，以查找下一个3位数字。
To use this resource in the classroom:
- 打印和层压QR海报
- place the posters randomly around the classroom
- 将学生分成成对或小组
- provide each student with a recording worksheet
- provide each group with a tablet where a QR code scanning app has been pre-installed
- 指示学生在“在这里开始！”海报开始寻宝游戏
- 学生扫描QR码以揭示线索
- students read the clue then ‘hunt’ for the 3-digit number in the speech bubble that matches the clue
- students record the numbers in sequential order on their worksheets.
请注意，QR码和3位数字的顺序按顺序从最小到最大的，从“启动此处”海报开始，并从“完成”海报完成。
资源末尾包含了三张空白海报，以制作您自己的QR代码寻宝游戏海报。只需使用Google一个QR代码创建者网站，输入线索，然后下载QR码以切割并粘贴到空白海报上。
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