A Study On The Effectiveness Of Extracurricular Exercises In Senior High School Biology Textbook

The new curriculum and the reform of the new college entrance examination have been launched nationwide.The Biology textbook of the People's Education Edition in2019 has also been fully put into use.After-school exercises for the textbooks are one of the teaching contents of teachers.There are many ways to implement the educational concept of the new curriculum.Very important role,but how effective are the exercises after class in the new textbook? What is the effect of consolidating knowledge? How effective is it to help students improve their comprehensive abilities and enhance their biological core literacy? These issues are what educators urgently need to understand at the beginning of the use of new teaching materials.For teachers,they must fully understand the characteristics of after-class exercises and understand the intentions of the textbook editors in order to maximize the value of after-class exercises and teach more efficiently;for textbook editors,understand the after-school exercises.To understand the feedback materials from front-line teachers and students,it is also a reference for improving the teaching materials and exercises in the future.The research object of this article is the after-school exercise of Molecules and Cells,a compulsory high school biology textbook published by the People's Education Press in 2019.The research methods used are literature research,questionnaire survey,text analysis,and empirical research.The literature research on the after-class exercises of the high school biology textbook Molecules and Cells published by the People's Education Press in 2019 shows: The 2019 People's Education Edition High School Biology Textbook Compulsory One,Molecules and Cells After-school exercises,literature research shows that: the effectiveness of assignments in all disciplines has been studied,but there is less research in Biology.Only the old compulsory two has been studied,new Research on textbooks is even rarer,so this research is very necessary.The survey results of the teacher questionnaire and the student questionnaire show that the new version of after-school exercises has obvious effects in consolidating knowledge,and has a great effect on the cultivation of students' abilities.It pays more attention to the cultivation of biological core literacy than the old version,and has a great effect on students' career planning.A certain guiding effect,but some chapters have a small amount of questions,the content of concept testing is easy,and the expansion of application questions is difficult.For these reasons,our investigation found that some teachers and students often ignore the textbook exercises,use school homework or extracurricular Instead of tutoring materials,teachers did not pay attention to the attitude of after-class exercises,indicating that they did not understand the teaching concepts of the new curriculum standards.They were completely led by the test-oriented education.However,the requirements for the college entrance examination are getting higher and higher,and the comprehensive ability is The inspection of biological core literacy is becoming more and more comprehensive and sufficient.Therefore,this research hopes to enable front-line teachers to pay attention to after-class practice and have a deeper understanding of the new curriculum teaching concepts.The text analysis of "Molecules and Cells" exercises found that the design of after-school exercises is divided into concept testing and extended applications.Concept testing focuses on the consolidation of basic knowledge,often in the form of judgment questions and multiple choice questions;extended applications often The emergence of subjective questions has greatly improved students' ability training,especially in experimental exploration,logical thinking training,and expansion of horizons.It conforms to the purpose of the new curriculum concept and focuses on training students' core qualities.It involves the introduction of many frontier fields of science and technology,and the difficulties that arise in the research process,guide students to pay attention to social production and life,take the initiative to think,consult materials,and explore.However,the content of some questions is beyond the outline,or the questions are too difficult,and it is difficult for students to answer completely without reminding.Based on the foundation of the above research,this article has developed a validity dimension table,based on the dimension table for some inappropriate places Some modifications.The empirical study on the after-school exercises of "Molecules and Cells" divided 6 classes at the same level into two groups.The control group did the after-school exercises before modification,and obtained the validity analysis of all exercises through the hand-reading card mode of Zhixue.com,Combined with the validity dimension table to modify the topics with lower validity.The revision process combined the reference opinions of many frontline teachers.After the final version was approved by many senior teachers,a special-grade teacher and teaching and research staff,let the experimental group do Modified exercises after class,and tested the effect of the modified questions.The validity analysis result of the test result obtained is very good.On the basis of the above research,the following conclusions are drawn: after-class exercises in molecular and cell,a high school biology textbook published by people's education press in 2019,can better cultivate students' biological core literacy and train students' comprehensive ability,but some of the questions are not quite right.According to the validity dimension table,it can improve the validity of the questions and make them more scientific and accurate.Teacher and student attitudes also play a key role in achieving effectiveness.Therefore,the research of this paper is meaningful and valuable.The purpose of this article is to study the effectiveness of the homework of the textbook.From the results of the study,the effectiveness of the achievement is divided into several dimensions: First,the topic of each chapter is designed reasonably,pertinent,solid,enlightening,The implementation of the new curriculum concept is in place;the second is the scientific nature of the user's importance,use time,and method in the use process.If the user uses the exercises as the necessary materials for the preview and review in each lesson,the teacher is in the classroom Provide adequate guidance in the evaluation process and attach importance to the cultivation of students' core literacy during the evaluation process.Then the effectiveness of after-class exercises will be explored to the greatest extent.Otherwise,no matter how good the topic is,improper use,insufficient attention,and effectiveness will not be reflected..The above research can improve the accuracy of the feedback function of homework in biology teaching,thereby improving classroom efficiency and reducing the burden on students.At the same time,teachers should pay attention to the value of after-class exercises in biology teaching,and better understand the teaching concepts given by the new curriculum standards;promote the penetration of new curriculum concepts in high school biology classroom teaching,and help students establish a correct concept of homework.Improve students' comprehensive ability.Cultivate and improve students' core biological literacy,consider students' long-term development,and reserve corresponding scientific and technological talents for the society;enable textbook editors to understand the use and feedback of frontline teachers and students on after-class exercises,and provide certain references for future revisions value.