盲目尝试 meaning in English

shoot in the dark

Here a suggestion is presented that the mental process of senior chemistry experimental problem - solving can be divided into four periods such as problem confirming , problem parsing , experiment design and experiment operation , and there are six representation patterns of chemistry experimental problem , for instance , character representation , chemistry representation , sample representation , visualization representation , skill representation and mathematic representation . at the same time , problem solving strategies also can be divided into principle guide , sample guide , environment guide and blind attempt
作者提出高中学生解决化学实验问题的心理过程可分为问题确认、问题解析、实验设计和实验操作四个阶段，他们对化学实验问题的表征方式有字面表征、化学表征、样例表征、形象表征、技能表征和数学表征等六种，而解决策略则可分为原理导向、样例导向、情境导向和盲目尝试四种。