Research On Core Concept And Learning Progress In Cell-metabolism

The latest college entrance examination reform programs are generally proposed to focus on the quality of students as the main content of the investigation, the latest version of the biological curriculum will also be listed as one of the basic concepts of curriculum design. The core concept refers to the important concepts, principles, theories and so on,which can guide the development of the subject. Through the teaching research based on the core concept, it can effectively promote the teachers to teach better and the students learn better.Core concept is a very broad concept, which contains a number of important concepts as support. In the specific study of the core concepts of a subject, the first step is to sort out these important concepts as support. "Metabolism" theme is the first learning problems in high school biology, college entrance examination is the focus on the content, the first step of our research is to sort out the important concepts of cell metabolism "theme.In this paper, through the comparative analysis of "2017 college entrance exam outline", biological "ordinary high school biology curriculum standard" and teaching materials, to tease out the "2 core concepts of cell metabolism" theme, namely "the survival of cells need nutrients, cell survival needs energy". With 50 subjects in the textbooks from the fact analysis, identified 8 important concepts in two core concepts:"under the jurisdiction of the animal and plant cell survival needs water absorption"and"biofilm fluid mosaic model", "materials in and out of the cell through membrane, cell metabolism cannot do without enzyme catalysis" ATP, "for the life activities of the direct energy", "cellular respiration is the major source of ATP" "life system energy of light is the ultimate source of photosynthesis fixed, photosynthesis and respiration in organisms can at the same time".After choosing the important concepts, we can study the progressive levels of these concepts by learning progress theory. There are two types of learning progress research,one is the concept of a different period of long time measurement on the time dimension,from the dimension of content construction learning is the study of a specific period, the progressive level between the important concept of a subject, this study is second.There are many ways to build learning progress, based on the literature, we can put the whole process is expressed as: creating a learning progress measurement model -design selection hypothesis - testing tool learning progress modified four steps, and began to carry out the following study:The first step is to construct the learning hypothesis. We have passed the relevant study on curriculum, syllabus and textbook, combined with their own teaching experience, the ability to learn important concepts on each students are divided into 4 levels.Study two, select the measurement model. We can answer the correct rate through the analysis of the student and the concentration of the two factors to study students’ test results, refer to the related literatures, we put the correct rate and concentration of each divided into high, medium and low 3 levels, two together there are 9 correct rate --concentration of two-dimensional type through analysis to determine the type of two-dimensional student learning.Study three, a reliable test tool. Through the original, as well as the adaptation of the existing college entrance examination, simulation or end of the test questions, the establishment of test questions, through the test of students to analyze the reliability of the test results, according to the results of the measurement to improve the measurement tools.Study four, implementation of the measurement, analysis of measurement results,modify the advanced assumptions. We use the statistical software to calculate the correct rate and concentration of the students to determine the correct rate of the students to answer the degree of concentration of two-dimensional type, the level of student learning,according to the results of the revised advanced assumptions.Study five, "cell metabolism," the theme of learning progress expression. Through the fourth step of the amendment, the final level of expression.Through the study of the five step, we get 8 important concepts of learning into the class to learn "metabolism" theme of the, hoping to help the teacher better in the subject teaching, students learn better, also hope to provide reference to related research on biological course.