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定向数字(版本2)
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Published:
2016-06-04 04:43:55
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总结
小熊指导数字认知游戏
这一3D模型已在数学课上进行测试,结果表明它对帮助学生理解正数和负数的概念非常有效。
https://www.youtube.com/watch?v=6ooFT7Weybk
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