Research Article
Construction of Perceptual Classroom Based on Internet of Things Technology
| | e de | −4 | −3 | −2 | −1 | 0 | 1 | 2 | 3 | 4 |
| | −4 | 4 | 3 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | | −3 | 3 | 3 | 3 | 2 | 2 | 2 | 0 | 0 | 0 | | −2 | 3 | 3 | 2 | 2 | 1 | 1 | 0 | −1 | −2 | | −1 | 2 | 2 | 2 | 1 | 1 | 0 | −1 | −2 | −2 | | 0 | 2 | 2 | 1 | 1 | 0 | −1 | −2 | −2 | −3 | | 1 | 2 | 1 | 0 | −1 | −1 | −2 | −2 | −3 | −3 | | 2 | 2 | 1 | 0 | −1 | −1 | −2 | −2 | −3 | −3 | | 3 | 0 | 0 | 0 | −2 | −2 | −2 | −3 | −3 | −3 | | 4 | 0 | 0 | 0 | −3 | −3 | −3 | −3 | −3 | −4 |
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