有七成五的人曾实施教学成效评值，最常采行的评值方法是观察学生上课情形及统计参与人数。

Seventy-five percent performed evaluation of teaching effectiveness; the most common method for evaluation was observing pupils in classes and recording the number of participants.

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该方法以优化理论为依据、以待评方案距最劣方案的加权距离的平方的极大值为优化目标，建立了新的数学模型，并给出了精确解。

Using the optimization theory a mathematical model which maximizes the square of the distance between the project to be evaluated and the worst scheme is established, and the exact solution is given.

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该方法以优化理论为依据、以待评方案距最劣方案的加权距离的平方的极大值为优化目标，建立了新的数学模型，并给出了精确解。

Using the optimization theory a mathematical model which maximizes the square of the distance between the project to be evaluated and the worst scheme is established, and the exact solution is given.

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