Biology and environment teaching case

The following is a middle school biology book,"Blossom and Fruition"-the teaching ability design case of the flower structure: ##1. Teaching objectives ###(1) Knowledge and Skills To make the students understand the basic structure of flowers. The main structure of flowers is stamen and pistil. ###(2) The process and method Through observing and dissecting the basic structure of flowers, students 'observation, analysis, and hands-on operation skills will be improved. ###(3) Emotional attitudes and values Initially cultivate the students '"structure and function to adapt to the" philosophical point of view, and at the same time stimulate the students' love for flowers, protect flowers. ##2. Difficulties in Teaching ###(1) Important Points The basic structure of a flower. ###(2) Difficulties describe the process of pollen and fertilisation. ##3. Teaching process ###(1) Introduction to the new lesson A poetry solitaire game was launched to enliven the classroom atmosphere. According to the flowers mentioned by the students, the corresponding pictures were displayed with the help of powerpoint. After guiding the students to compare and observe, they found that there were differences in color, size, and shape of these flowers, and then asked questions: Are their basic structures the same? What kind of structure does a flower contain? This led to a new lesson. ###(2) New lesson 1. Question: What are the parts of a complete flower? The students read the teaching materials on their own with the questions and used the peach blossom model given by the teacher to observe. The teacher guided the students to name a complete flower in order from bottom to top and from outside to inside, which included the stalk, torus, petals, stamens and pistils. 2. [Can you tell me the function of a certain part?] (Students are expected to answer from the flower stalk, flower holder, petals, and petals because their functions are relatively simple.) 3. The teacher asked: What are the functions of the stamen group and pistil group? Which parts are included? The teacher explained with the help of the wall chart: The stamen is composed of silk and anther. The silk is slender, and the top is connected to the anther to support the anther. The anther is the main part of the stamen. When you use a tweezer to pinch the flowering medicine and observe it with a magnifying glass, you can see that there is a lot of pollen inside. There is a kind of reproductive cell sperm in the pollen. The pistil was composed of three parts: the pistil, the style, and the ovum. The pistil was the part that received pollen, the style was the connecting part between the pistil and the ovum, and the passage for the pollen tube to enter the ovum. The ovum was the expanded part at the base of the pistil. 4. What was the secret behind the internal structure of the ovaries? The teacher played the demonstration video of the vertical cutting of the peach blossom's ovaries and explained,"Cut the peach blossom's ovaries vertically and observe them with a magnifying glass. You can see the ovules inside the ovaries, which will eventually develop into seeds." 5. The last question was, what was the most important structure of a flower? In the stage of consolidating, methods such as playing games (puzzles and posters), carrying out experimental operations (dissecting and observing the structure of flowers), making models (making flower specimens/drawing diagrams/making simple models), etc. could be used. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The following are some case studies of the application of multi-media technology in biology teaching: ** 1. Arousing students 'interest ** 1. ** Introduction to Pre-class Learning ** - In the compulsory class of "Into the Cell", the teacher could play the underwater world plant exhibition map and film content. By showing the different types of plants on the seabed, it would arouse the students 'interest. Then, it would lead to the content of cells and start from the seabed plants to teach the basic knowledge of cells. - In the section on "Pollution and Protection of the Earth," the teacher introduced a video of "The Beautiful Earth in Space", such as the image of the Earth taken by the Apollo spacecraft. After the teacher described the beauty of the Earth, he talked about the changes in the relationship between the Earth and humans after the industrial revolution, so that the students could think about the performance of the Earth's "anger." - In the section "The Biosphere, the Home of Living Creatures", pictures of the world's extinct animal cemetery in Nanhaizi Elk Garden in Daxing District of Beijing were displayed. The last words of the extinct animals were also displayed to stimulate the students 'feelings of paying attention to the biosphere. - In the section on "The environment affects the survival of living creatures," the video "The Drowned Polar Bear" was played, showing pictures of polar bears and asking students to analyze the reasons for the death of polar bears and their poor living conditions. - In the teaching design of the lesson "Organs of Material Transportation," the teacher searched for blood circulation videos before class, played the video at the beginning of the class, and accompanied it with explanations. At the same time, the students were asked to combine their own feelings (look at the "blue veins" on the back of their hands, feel the beating of their hearts) to attract students and stimulate their passion for exploration. 2. ** Story import ** - In the teaching of exploring the role of membranes in cell metabolism, the video showed the Spalanzani experiment, asking the students to think about the reason why the meat was placed in the metal cage and the substance that made the meat disappear. This led to the teaching content. ** 2. Promotion of knowledge understanding ** 1. ** Directly show the difficulties ** - In the process of high school biology learning, there were many professional terms, and the textbook explanations were more difficult to understand than the official ones. Teachers could use the multi-media to express abstract and complex text through images and videos. For example, the arteries, veins, capillaries, and heart in the teaching materials could be made into static or dynamic pictures or videos, accompanied by text annotations and arrow symbols to show the characteristics of each organ and the connections between them for the students to understand. - In the teaching of exploring the role of membranes in cell metabolism, the animation demonstrated the principles under four experimental conditions to help students understand the relevant knowledge of the experiment. ** 3. Teaching Support ** 1. ** Assist in experimental teaching ** - In the teaching of exploring the role of microorganisms in cell metabolism, when the teacher demonstrated the experiment of "Comparing the decomposition of hydrogen dioxide under different conditions", the teacher used the Siwo Teaching Assistant to conduct a real-time live broadcast. Students could clearly capture the details of the experiment through the LED display screen or the tablet student machine. - In modern biology teaching, multi-media could help solve the difficulties of experimental teaching, such as the teacher's difficulty in demonstrating the experiment many times for all the students to see clearly (especially the students at the back of the classroom). These cases showed that the application of multi-media technology in biology teaching could improve the teaching effect in many ways, such as stimulating students 'interest, promoting knowledge understanding and assisting the teaching process. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The following is a teaching design case of high school biological mutation breeding and evolution: ##1. Teaching objectives 1. ** Knowledge target ** - Students will be able to understand the types, structures, and characteristics of genetic mutations, the types of aberrations, and their applications in breeding, as well as the principles and characteristics of various breeding methods. - Master the main points of modern biological evolution theory and understand the comparison between natural selection theory and modern biological evolution theory. 2. ** Ability Target ** - Able to apply the breeding process to the experimental design of biological breeding. - He learned how to build a knowledge network and form his own knowledge system with the knowledge of mutation breeding and evolution. 3. ** Emotional goal ** - Through understanding the application of mutation breeding and evolution knowledge in life, students could experience the practicality of biology and stimulate their interest in biology. ##2. Difficulties in Teaching 1. ** Main point ** - Distinguish three types of hereditary mutations (gene mutation, gene reorganization, and aberrations). - Master the breeding process and be able to carry out relevant experimental design. - Deep understanding of modern biological evolution theory. 2. ** Difficulty ** - Understand the essential differences and connections between the three types of hereditary mutations. - The complicated links in the breeding process and the construction of experimental design ideas. - In modern biological evolution theory, there were abstract concepts such as the calculation of gene frequency. ##3. Teaching Method Teaching method, discussion method, question guidance method, and case analysis method. ##4. Teaching process ###(1) Introduction (5 minutes) By showing some pictures of creatures with obvious differences in traits (such as flowers of different colors, fruits of different shapes, etc.), ask the students how these differences in traits arise, guide the students to think about the concept of mutation, and then lead to the topic of mutation breeding and evolution in this lesson. ###(2) Knowledge explanation (25 minutes) 1. ** Mutated Part ** - gene mutation - Explain the molecular mechanism of genetic mutation, including mitosis, protocaryote fission, and viral DNA replication. It emphasized that gene mutation did not change the number of genes, but only the structure of genes. It explained the impact of gene mutation on traits through examples (such as sickle cell leukemia), including changing biological traits and not changing biological traits. At the same time, the characteristics of gene mutation and the relationship between its advantages and disadvantages and the environment were described. - Illustrate the types of genetic mutations (dominant and latent) and their patterns of expression. - genetic recombination - This paper introduced the concept of gene reorganization from both narrow and broad perspectives, focusing on the free combination of non-allele-like genes on non-homolog and the cross-exchange of non-sister chromatids on homolog during the process of Meiosis. The process of gene reorganization was analyzed through cell division diagrams. Students were asked to discuss the differences between gene reorganization and gene mutation in producing new traits. - chromosome variation - They introduced the types of structural aberrations (loss, repetition, reversal, and translocations) and numerical aberrations (euploids and aneuploids). Through examples (such as the polyploids of some plants), explain the application principle of mutation in breeding. For example, polyploids can increase crop yield and improve quality. 2. ** Breeding Part ** - The more common breeding methods (mutation breeding, cross breeding, haploid breeding, polyploid breeding, genetic engineering breeding, etc.) were explained in terms of breeding principles, methods, advantages, disadvantages, and scope of application. For example, mutation breeding could produce new genes and create new types of mutations, but the frequency of mutation was low and the direction was difficult to control. Crossbreeding could not produce new genes, but it was only a combination of original genes, but the operation was relatively simple. - Give some practical breeding problems, let the students discuss in groups and choose the appropriate breeding method, such as which breeding method should be chosen to obtain a pure spore in a short period of time, etc., to train the students 'ability to use knowledge to solve practical problems. 3. ** Evolution Part ** - This paper introduced the main contents of Darwinian theory of natural selection (over-reproduction, struggle for survival, genetic variation, survival of the fittest), and analyzed its contributions and limitations. - The main points of modern biological evolution theory were elaborated, including population as the basic unit of biological evolution, the concept of gene frequency and its calculation method, the raw materials for evolution produced by mutation and gene reorganization, the direction of biological evolution determined by natural selection, isolation as a necessary condition for speciation, etc. Help students understand modern evolutionary theories through examples, such as the formation of different ground finches on the Galapagos Islands. ###(3) Class interaction (15 minutes) 1. ** Group discussion ** - Give some controversial questions, such as "Is GM food safe?" and let the students discuss in groups. Each group would elect a representative to explain the group's views, and the other groups could ask questions and refute. The teacher patrolled the students during the discussion and guided the students to think about the problem from the perspective of mutation breeding and evolution. 2. ** Question and Answer ** - Students were encouraged to ask questions that they had encountered in the learning process. Teachers would provide detailed answers to students 'questions and focus on some common problems, such as common errors in gene frequency calculation. ###(4) Class summary (10 minutes) 1. Guide the students to review the main knowledge points of mutation breeding and evolution learned in this lesson, including the types of mutation, the comparison of breeding methods, the main points of modern biological evolution theory, etc. 2. Students were required to construct a simple knowledge network, linking the knowledge of mutation, breeding, and evolution. Teachers would select some of the students 'works to display and comment on, further strengthening the students' overall grasp of knowledge. ###(5) Class Practice (10 minutes) Some practice questions related to the content of this lesson were distributed, including multiple-choice questions, fill-in-the-blanks questions, and short-answer questions. Students could complete them independently in class. The practice questions should cover knowledge points such as gene mutation, gene reorganization, aberration variation, breeding method selection, modern biological evolution theory, etc. Through practice, the students should consolidate the knowledge they have learned in time. The teacher should check and feedback the students 'practice situation, and provide individual guidance for the students' problems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Biology teaching activities are an important way to impart biological knowledge and cultivate students 'abilities. In terms of teaching objectives, they needed to be set according to the requirements of the curriculum standards. For example, compulsory education and high school had different teaching objectives, covering the mastery of basic concepts and principles of biology, as well as the cultivation of students 'scientific thinking, inquiry ability, and discipline accomplishment. The teaching content could include knowledge about cell structure and function, ecosystem, genetics and mutation, and many other aspects. For example, in the teaching of ecosystem, one could start from understanding the concept of ecosystem and explore the relationship between living and living, living and non-living. Various teaching methods: 1. Scenario-based teaching method: For example, when explaining the ecosystem, the animation of the pond's biological environment can be introduced into the course to attract the students 'attention and stimulate their interest in learning. 2. " Guiding-- 3. Group Cooperation Method: Follow the principle of open-mindedness and discuss in groups according to the students 'cognitive patterns. For example, when designing the construction plan of the ecological bottle, group cooperation could allow students to obtain more information through independent exploration and cooperation. The development of teaching activities is also inseparable from teaching evaluation. For example, through classroom competitions, the judges would evaluate the teachers based on their performance in concept teaching, concept construction during class hours, situation teaching, scientific thinking cultivation, and so on. The participating teachers could also reflect on their teaching after the competition to improve their teaching. In addition, there were activities such as the biological photography competition. Through the results of the work, students 'understanding of biological knowledge and perception of the beauty of living things were evaluated. It stimulated students' interest in biology and cultivated their observational skills. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The social environment in the teaching environment usually includes the following aspects: 1. Cultural environment: The social and cultural background of the teaching environment has an important impact on the teaching effect. Different cultural environments will have different effects on students 'cognition, emotions, attitudes and so on. Therefore, teachers need to understand and respect the differences between different cultures in order to better promote the all-round development of students. 2. The economic environment: The social and economic conditions of the teaching environment have an important impact on teaching facilities, equipment, teaching materials, and costs. Teachers need to understand and respect the differences in social and economic conditions in order to choose the appropriate teaching facilities, equipment, teaching materials, fees, etc. to better meet the needs of students. 3. Political environment: The political environment of the teaching environment has an important impact on the order of teaching, education policies, laws and other aspects. Teachers need to understand and respect the differences in the political environment in order to better comply with educational policies, laws, etc. to ensure the smooth progress of teaching. 4. The social environment: The social environment of the teaching environment has an important impact on students 'cognition, emotions, attitudes, and so on. Teachers need to understand and respect the differences in the social environment in order to better guide students to understand the society, understand the society, adapt to the society, and cultivate students 'sense of social responsibility and citizenship.

In biology, there were several ways to create an oxygen free environment: - ** Physical Deoxidization **: - ** Boiling Method **: Remove oxygen by boiling. - ** Surface Sealing Method **: For example, using a lid to seal the container, and dripping water around the lid to surround the entire lid to create an oxygen free environment. - Vacuum pumping method: pumping out the air in the container, including oxygen, to create an oxygen free condition. - ** Non-oxygen Gas Substitution Method **: Use non-oxygen gas to replace air containing oxygen. - ** chemical deoxidization **: - ** Pyrogallic acid method **: Use the reaction between Pyrogallic acid and oxygen to remove oxygen. - [Special catalyst method: Remove oxygen using a specific catalyst.] - ** Reductant Method **: Use a reducing agent to react with oxygen, consuming oxygen to achieve an oxygen free environment. - Biological Deoxidization: Aerobic organisms, such as certain plants, germinating seeds, and airborne microorganisms, are placed in a closed container. They will consume the oxygen in the container and create an anoxide-free condition for the cultivation of the anoxide-free microorganisms. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Interdisciplinary biology teaching practice is an innovative teaching method. It has many important meanings and characteristics. ** I. The importance of cross-disciplinary biology teaching ** 1. ** Make up for the lack of subject teaching ** - The traditional sub-subject teaching constructed the content according to the subject knowledge system, which was conducive to in-depth study of the subject concept and establishment of the subject cognitive structure, but there was a problem that the knowledge was out of touch with real life. Due to the limitations of the subject, it was often impossible to fully solve the complete problem in the real situation. However, cross-disciplinary biology teaching could make up for this deficiency, because solving practical problems in reality often required the integration of multi-disciplinary content. 2. ** Meet the requirements of the national education reform ** - The country had reflected the requirements for integrated teaching across disciplines in many policy documents. For example, in 2019, the relevant opinions issued by the Central Committee of the Central Committee of the People's Republic of China and the State Council proposed to explore the comprehensive teaching based on the subject curriculum. The outline issued by the Ministry of Education also pointed out that students should be trained to use the knowledge of various subjects to solve real-life problems. Interdisciplinary teaching could help achieve these requirements. 3. ** Cultivate innovative talents ** - According to relevant research, the relationship between disciplines was getting closer and closer, and many innovative scientific research results were based on cross-disciplinary research. Interdisciplinary biology teaching allowed students to use multi-disciplinary knowledge to solve problems. It was an important measure to cultivate innovative talents. ** 2. Position of Interdisciplinary Biology Teaching ** 1. ** The difference from comprehensive practical activities ** - Although the comprehensive practical activities such as labor and technical education in the school had the nature of cross-disciplinary learning, they were not academic, the characteristics of the subject were not obvious, and they were not closely related to the content and requirements of the subject. The content of the cross-disciplinary biology course was part of the subject curriculum and was open to all students. 2. ** The difference from the school-based curriculum ** - The school's interest activities, science and technology activities, and expansion courses were mostly outside of the curriculum and targeted at some students. Cross-disciplinary biology teaching was different. 3. ** It's the expansion of subject teaching methods ** - Interdisciplinary biology teaching was based on important knowledge of the subject. It selected real problems in students 'lives and social practice. Under the guidance of teachers, students used biology and other cross-disciplinary knowledge, skills, and methods to solve problems and achieve the learning requirements of the subject. Real problems were comprehensive, and solving these problems required multi-disciplinary knowledge. Interdisciplinary teaching helped to establish a cognitive system with solving problems as clues, complementing the subject knowledge system. It could not only strengthen subject learning, but also establish inter-disciplinary connections and improve the ability to apply what one had learned. ** III. Illustrations of Interdisciplinary Biology Teaching ** 1. ** Reflection in the college entrance examination biology proposition ** - It was reflected in the biology questions of the 2024 college entrance examination. For example, many of the questions in the national paper A and the new curriculum standard paper required students to use multi-disciplinary knowledge or cross-disciplinary thinking to solve them. For example, the 37th question of National Volume A revolved around the theme of rational use of disinfectant to reduce infectious diseases, examining the key points of the exploration process such as microorganisms cultivation, which involved the comprehensive application of biological knowledge and chemistry knowledge in real life; Question 34 of the new curriculum standard volume gave the practical problem of the production and breeding of white thorn melon, which required the use of genetic crossing method to solve, which may involve the comprehensive application of biology and mathematics knowledge. These questions reflected the orientation of solving practical problems across disciplines, and also reflected the importance of cross-disciplinary biology teaching, which allowed students to integrate biological knowledge with other subjects to improve their ability to solve practical problems. 2. ** Reflection in daily teaching ** - For example, the teaching practice of Teacher Yu Yuan from the affiliated middle school of Beijing Normal University used the combination of biology and geography to teach students to build bird nests. In this activity, students used knowledge about bird habitat from biology and knowledge about the environment and source of materials from geography to build nests with vines and feathers. This kind of cross-disciplinary practice allowed students to practice their creative thinking in hands-on operations, increasing their interest in biology, and at the same time, cultivating their ability to use multi-disciplinary knowledge to solve practical problems. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

Here are some strategies for teaching biology in high school: ** 1. Teaching plan ** 1. ** Careful planning **: The teacher should draw up a comprehensive teaching plan before the start of the class, including the selection of experiments, the relevant instruments, experimental materials, and drugs used in each experiment. It should be clear which ones need to be purchased or prepared in advance, the number of classes needed, the location of the experiment (school or home), the specific methods and steps, the time for students to communicate, and how to evaluate the effect of the experiment. For the more difficult experiments, they would conduct pre-experiments in advance to grasp the time. 2. ** Experiment arrangement **: Make an experiment teaching schedule, write down the experiment content, including the experiment date, class, section, and name, and arrange the experiment according to the plan. ** 2. Research on teaching materials ** 1. In-depth analysis: Teachers should study the teaching materials in depth because the subject background, basic knowledge, research ideas, experimental design, operation tips, and other parts of the teaching materials have their own significance. The teachers had to understand the content of the teaching materials and conduct pre-experiments if necessary. Only then could they guide the students to analyze the teaching materials, clarify the knowledge background, clarify the research ideas, and then design the experimental plan to carry out the investigation. ** 3. Teaching methods ** 1. ** Demonstrations and video assistance **: Using the "education-demonstration" method, teachers can play videos, recordings, animations, or do experimental demonstration in class to help students build a clearer knowledge framework. 2. ** Inquiry-based teaching **: According to the teaching purpose, content, students 'actual conditions, equipment conditions, and other factors, the inquiry-based teaching method is adopted to let the students think more and find new methods and steps. When teaching theoretical knowledge, students could be allowed to summarize knowledge through experiments to cultivate students 'scientific quality, research ideas and methods, and strengthen ability cultivation and knowledge transfer. 3. ** Stratified Teaching **: Study the students 'academic situation, implement layered teaching according to their specific conditions, such as the results of other subjects, and do a good job in cultivating excellent students. Pay attention to target students, promote fringe students, and increase the number of effective online students. ** 4. Student Management ** 1. ** Group Cooperation **: Set up experimental activity groups and divide the class into groups of three or five. They could share wisdom in group activities, cultivate the spirit of innovation, encourage each other in the face of setbacks, improve communication and collaboration skills, and design and complete experiments under the guidance of teachers on the basis of self-learning relevant knowledge. Then, they would collect and organize materials, write reports, and conduct oral communication and mutual discussion. 2. ** Guide the use of resources **: Guide the students to actively use the curriculum resources in the community and family, such as visiting the relevant workshops, doing simple biological production at home, etc. You can also use the Internet to find answers to difficult questions or seek the help of experienced people. This will allow the students to understand the relationship between biological science, technology, and society and increase their interest in learning. ** 5. Teaching Evaluation ** 1. ** Comprehensive evaluation system **: Design a teaching evaluation system. Through the evaluation, not only can you understand the effects of the project activities, but you can also find the problems, difficulties, and psychological changes that students have encountered in practice. For example, using checklists to evaluate operational behavior, inquiry ability, emotional attitudes, values, etc. to ensure the smooth implementation of teaching activities and achieve teaching goals. ** 6. Enhancing students 'learning ** 1. [** emphasis on memorizing teaching materials **: Students must memorize the contents of the biology teaching materials. Apart from the page number, they must master almost everything. The supplementary materials can be hand-written notes or a book to assist them. After that, they can practice the big questions.] 2. ** Learning Method Guidance **: strengthen the guidance of learning methods and cultivate students 'good learning habits and interests. It would help students learn how to study biology well, guide them to grasp the essential laws of life science, and form learning habits that were suitable for their own development. At the same time, combining production and practical life teaching, it cultivates the students 'ability to use the knowledge they have learned to solve practical problems and improve their learning efficiency. 3. ** High-quality proposition and analysis **: Create high-quality weekly test questions, carefully analyze the results of the weekly and monthly tests, and adjust the teaching progress and methods in a timely manner according to the analysis results. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The research content of a biology teaching project or teaching research project was closely related to the research goal. The formulation methods included backward and forward inference methods. From the perspective of the reverse inference method, the research goal was used as the starting point for reverse inference. For example, if the research goal was to investigate the causes of the formation of "disadvantaged students" and their current learning situation, to understand the main reasons for their formation and the actual learning situation (Taking the disadvantaged students in biology teaching as an example), the research content may include: first, the definition of "disadvantaged students" and "classroom participation"(in biology learning); second, the investigation of the causes and learning status of disadvantaged students, including the investigation of the relationship between the family status of disadvantaged students and the weakness of biology learning, the relationship between disadvantaged students and teachers 'biology teaching methods, the relationship between students' biology learning habits, learning foundation and academic performance, etc. In terms of direct deduction, the research content was determined according to the time course of the research. For example, for a topic like "Research on the Practice of the 'Four Circles and Eight Steps' Teaching Model in Biology Teaching", the research content could be determined in stages. The first stage was to learn and define the "four rings" and "eight steps"(the content of the "four rings and eight steps" related to biology teaching). The second stage was to practice the "four rings and eight steps" teaching model in biology teaching. The third stage was to study the validity and feedback. In addition, in terms of the research content of biology teaching topics, it may also involve teaching methods, such as the application of intuitive teaching methods in biology teaching, including object visualization.(For example, specimen observation, experimental teaching, etc., so that students can better grasp the biological shape of microorganisms, familiarize themselves with experimental operations and cultivate rigorous attitude, etc.) It may also involve curriculum resources, such as the utilization of local biology curriculum resources and the professional growth of teachers, including how to combine local ecological characteristics, use local ecological resources to carry out biology teaching, solve the shortage of curriculum resources, and improve students 'enthusiasm and ability to learn biology. It might also include the arrangement and reference of the biological research model, from which he could learn how to set the content of the biological research. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The following are some innovative ways of teaching biology in junior high school: ** I. Teaching model innovation ** 1. ** Open Teaching ** - Teaching objectives and content: The teaching objectives and content are dynamic and open. Biology courses were updated quickly and needed to be improved continuously. This characteristic was suitable for open teaching. For example, when teaching green plant-related content, students could be brought into nature and experience the differences between green plants in person, so as to fully experience the course content, stimulate learning enthusiasm and initiative, and improve the teaching effect. 2. ** Layered Teaching ** - Take into account the differences between students: Take into account the differences between students in terms of family situation, education, potential, etc., including factors such as knowledge background, IQ, and emotions. The traditional teaching model used a unified spoon-feeding method to teach students in accordance with their aptitude, while the layered teaching method could take care of the individual development of students. - "Scientific grouping: Students are grouped according to their own knowledge system, ability level, and other factors to minimize the differences between students in the same group. Then, a unified teaching model is used to teach students in the group, respecting the differences between students, helping students build self-confidence and stimulate learning interest. ** 2. Use the smart classroom environment for innovation ("Five-dimensional Integration" teaching model)** 1. ** To improve the quality of preparation and stimulate students 'interest (First Dimension)** - The teacher used the smart classroom to push the micro-class video to assist in the preparation, and the students asked questions after watching it. Teachers could use data feedback to know whether students were watching microclasses, and they could also understand problems through message boards. Students could also discuss online and form a learning community. 2. ** Construct a life situation and do a good job of introducing it into the classroom (second dimension)** - The core knowledge of the classroom was integrated into the living situation, breaking through the limitations of time and space in the classroom. For example, life observation tasks related to biological knowledge, such as the "7-Day Observation Diary of Mung Bean Seeds", could be assigned. Students could use the tablet terminal to take photos and upload them. This would help to cultivate academic literacy and allow students to understand core knowledge in their daily lives. 3. ** Enriching classroom activities, teachers and students explore together (Third Dimension)** - Make use of the smart classroom environment to enrich the forms of interaction, such as answering questions, random roll call, etc. to increase the attention and participation of students in the classroom. During group discussions, the teacher could send a discussion task, and the group would upload the results to the big screen to share. For biological experiments, teachers could display the experimental process through the physical booth of the tablet terminal. For experiments that were difficult to complete in the classroom, they could use the virtual experimental booth to deepen the students 'understanding of knowledge. 4. ** Prompt feedback in class, using learning to stimulate reflection (Fourth Dimension)** - In the smart classroom environment, the teacher arranged the whole class to answer questions, and the students used the tablet terminal to answer the questions. The teacher grasped the students 'answers in real time through intelligent correction and big data statistics and analysis, so as to better complete the teaching and achieve the course goal. 5. ** To improve the quality of assignments and evaluations (Fifth Dimension)** - In addition to traditional paper assignments, various forms of assignments could be arranged through the smart classroom environment, such as micro-class review, virtual experiments, activity experience, test questions, handwritten report production, Short videos editing, etc. In the evaluation class, big data was used to analyze the test situation, understand the common mistakes, and carry out targeted explanations. It could also generate a customized study manual to push exercises for students 'weak knowledge points. ** 3. Through project-based learning and project-based learning, innovation ** 1. ** Project-based learning ** - For example, in Tianjin City Nancang Middle School, teachers and students used project-based learning mode to carry out experimental research in the fields of tissue culture, water culture, soil culture, and microorganisms. In the process of project research, students had to consult literature, design experiments, draw mind maps, determine experimental processes, analyze experimental data, construct mathematical models, write experimental reports, display results, etc. This helped to improve students 'various abilities, such as observation ability, reading literature ability, experimental operation ability, argumentation ability, analysis problem ability, language expression ability, and also cultivate scientific thinking and scientific research spirit. 2. ** Research-based learning ** - Teachers set up many research learning courses such as "tissue culture of candied dennie","water culture vegetables","water culture flowers","production of microorganisms fertilizer", etc., and self-compiled school-based teaching materials to encourage students to carry out innovative learning and research, provide students with individual and diverse choices, and promote the cultivation of students 'interests, practical ability, and innovative spirit. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>