Performance Evaluation Of Chemistry Exploratory Experiment In Junior Middle School

Compulsory Education Chemistry Curriculum Standard promulgated in 2011 emphasizes to motivate students to learn chemistry curiosity, guide students understanding of the law of the change of the material world, guide the students to experience the process of scientific inquiry and improve students’ scientific literacy.Students’ scientific literacy is reflected in where, the most important part is the ability level of students’ chemistry experiment. Curriculum reform advocates inquiry learning, chemistry inquiry experiment is actually a kind of inquiry learning,so in a certain extent, we can think the scientific literacy of students is mainly reflected in the chemistry inquiry experiment.Curriculum reform advocates inquiry learning, chemistry inquiry experiment is actually a kind of inquiry learning, so in a certain extent, we can think the scientific literacy of students is mainly reflected in the chemistry inquiry experiment. And the evaluation of chemistry inquiry experiment is the focus of the work of chemistry teaching evaluation. The evaluation of curriculum standard points out that the common evaluation methods have paper-pencil tests, performance evaluation of learning activities and the establishment of learning files and so on.These three kinds of evaluation methods are also applicable to the evaluation of chemical inquiry experiments, especially for the performance evaluation of learning activities.Performance evaluation of learning activities is actually belong to the category of performance assessment, in order to apply the performance evaluation, first of all need to study the performance assessment.In this paper, the author combined with junior middle school chemistry inquiry experiment content research on performance assessment and gives two complete performance assessment of chemistry inquiry experiment case to provide a reference for the chemistry teachers.The thesis consists of five parts: introduction, three chapters and conclusion.The introduction part introduces background and significance of the experimental teaching of chemistry inquiry in junior middle school.The first chapter defines the related concepts of junior high school chemistry inquiry experimental performance assessment, expounds the research status of this study, as well as the theoretical basis of the performance assessment of junior high school chemistry exploratory experiment.The second chapter is the main part of the paper. Firstly, the paper introduces the performance assessment of the assessment target, task, criteria and tools, especially for the assessment task, standard formulation and tools are introduced in detail and will each part with the "Compulsory Education Chemistry Curriculum Standard" and junior middle schoolchemistry inquiry experiment combined, with examples.The evaluation standard is the core problem of performance assessment, only a reasonable and fair evaluation standard,performance evaluation is meaningful.In the assessment criteria in this section, the author focuses on the development of heavy and difficult steps of junior high school chemistry exploratory experiment and the steps.The third chapter is the performance evaluation of the case.I chose the inquiry oxygen volume fraction, and the homemade acid-base indicator and explore the acidity of the family washing of supplies "two inquiry experiment, the scheme of performance assessment in the two experiments are described in detail. And through the Delphi method to determine the assessment factors weight and the different level of performance scores, using a variety of assessment tools.The last part of the last part of the conclusions obtained in this study, the performance evaluation is very suitable for chemical experiments to explore, and the majority of chemistry teachers is operational.And reflect deficiencies of this study.