第四，五部分描述实验的设计，过程与步骤，以及数据统计与分析，并力教师提供了任务分级的教案设计示范。
In the fourth and fifth parts, the designing of the experiment, data collection and analysis, as well as grading the tasks were shown.
第四，五部分描述实验的设计，过程与步骤，以及数据统计与分析，并力教师提供了任务分级的教案设计示范。
In the fourth and fifth parts, the designing of the experiment, data collection and analysis, as well as grading the tasks were shown.
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