[Retracted] Teaching Mode Based on Educational Big Data Mining and Digital Twins

Table 2

Personal work evaluation scale.

Evaluation index	Grade
	Weights	Excellent (80–100)	Pass (60–80)	Unqualified (0–60)
Accuracy	0.4	Correct	Basically correct	Confusion, error
Innovation	0.3	Ideas and insights	Lack of novelty	Nothing new
Organized	0.3	Clear logic	Basically ok	No logic