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做实验、开展探究活动有助于体验科学探究的过程,有助于在实践中逐步培养科学的态度,获得科学的方法,形成终身学习的意识和能力。因此,各地中考的实验探究题分值都较多,一般约占25%。其考查内容一般分两类:一是对教材中基本实验知识和技能的考查,如常用仪器的认识和使用、实验基本操作、现象描述、原理分析、物质的检验鉴别等;二是探究味儿较浓的实验题,考查形式多是借助化学实验来展现科学探究的几个环节,如“猜想与假设”“设计方案”“进行实验”“数据分析与处理”“解释与结论”“反思与评价”等,从而考查发现问题、提出问题、分析和解决问题等能力。而题型可涉及到选择题、填空简答题、综合实验题、探究题等。为提高大家复习的针对性,现举几例进行分析。
To do experiments and carry out inquiry activities helps experiencing the process of scientific inquiry, helps to gradually develop a scientific attitude in practice, obtains a scientific method, and forms lifelong learning awareness and ability. Therefore, the test scores around the exam are more, usually about 25%. The test content generally divided into two categories: First, the textbook basic experimental knowledge and skills of the test, such as the common understanding and use of equipment, the basic operation of the experiment, the phenomenon of description, the principle of analysis, the test material identification; the second is to explore the taste More concentrated test questions, test form mostly through the use of chemical experiments to show several aspects of scientific inquiry, such as “guess and hypothesis ” “design ” “experiment ” “data analysis and processing ”Interpretation and Conclusion “ ”Reflection and Evaluation " and so on, in order to examine the ability to find problems, ask questions, analyze and solve problems. The questions can involve multiple choice questions, fill in short answer questions, comprehensive experiment questions, inquiry questions. In order to improve the pertinence of the review, let me give you some examples.