Unit 9 Human Biology Lesson 2 Brain Power 教案-2024-2025学年高中英语北师大版（2019）选择性必修第三册

Lesson 2: Brain Power (Second Period) Subject English Grade Level Senior High School Grade 2 Total 2 periods Textbook Beijing Normal University Press, Elective 3 Class Type Listening and Speaking Period 2 Textbook Analysis Textbook Analysis This lesson focuses on the structure and functions of the human brain. It introduces key terms such as atom, nerve, billion, cell, and organ, and provides a detailed lecture on the brain's composition, weight, energy usage, and the number of cells. The lesson also includes activities to match definitions, listen for understanding, and complete summaries. The goal is to enhance students' comprehension of complex biological concepts through interactive and engaging activities. Student Analysis Students have a basic understanding of biology and are familiar with some scientific terms. They are generally curious about the human body and its functions. However, they may struggle with technical vocabulary and complex scientific explanations. To address this, the lesson will incorporate pair work, listening exercises, and group presentations to ensure active participation and deeper understanding. Teaching Objectives Knowledge and Skills 1. Understand the basic structure and functions of the human brain. 2. Match key terms with their definitions accurately. 3. Listen to and comprehend a lecture about the brain. 4. Complete a summary of the lecture with accurate information. Process and Methods 1. Engage in pair work to match terms and definitions. 2. Listen to a lecture and take notes. 3. Discuss and share findings with partners. 4. Present additional information found online to the class. Emotional Attitude and Values 1. Develop curiosity and interest in human biology. 2. Enhance critical thinking and analytical skills. 3. Foster teamwork and communication skills. 4. Promote a positive attitude towards learning and scientific exploration. Teaching Focus and Difficulties Focus 1. Understanding the structure and functions of the brain. 2. Matching key terms with their definitions. 3. Listening to and comprehending a lecture about the brain. 4. Completing a summary of the lecture. Difficulties 1. Grasping complex scientific concepts and terminology. 2. Accurately matching terms with their definitions. 3. Comprehending and summarizing the lecture effectively. 4. Presenting additional information clearly and coherently. Teaching Methods and Preparation Teaching Methods Pair work, listening, discussion, presentation Materials Preparation Textbook, audio recording, handouts, projector Teaching Procedure Teacher Activities Student Activities Warm up (5 minutes) Introduction (1) Greet the students and introduce the topic of the brain. (2) Ask students to share what they already know about the brain. (3) Write key terms on the board: atom, nerve, billion, cell, organ. (4) Explain the importance of understanding the brain's structure and functions. (5) Distribute handouts with the key terms and definitions. (6) Instruct students to match the terms with their definitions in pairs. 1. Share their knowledge about the brain. 2. Match terms with definitions in pairs. 3. Discuss and confirm answers with partners. Evaluation Task 1. Correct matches: ☆☆☆ 2. Active participation: ☆☆☆ 3. Clear communication: ☆☆☆ Design Intentions To activate prior knowledge and engage students in the topic. Pair work encourages collaboration and ensures all students are actively involved. Listening for Understanding (15 minutes) Pre listening (1) Introduce the statements and explain the task. (2) Have students read the statements and predict whether they are true or false. (3) Play the audio recording of the lecture. (4) Instruct students to listen carefully and check their answers. (5) Pause the recording after each statement to allow students to verify their predictions. (6) Provide feedback and correct any false statements. 1. Read the statements and predict their truth value. 2. Listen to the lecture and check their answers. 3. Discuss and correct any false statements with the teacher. Evaluation Task 1. Accurate predictions: ☆☆☆ 2. Active listening: ☆☆☆ 3. Correct answers: ☆☆☆ Design Intentions To develop students' listening skills and critical thinking. Predicting and verifying statements enhances engagement and comprehension. Completing the Summary (10 minutes) Post listening (1) Distribute the summary worksheet. (2) Play the lecture again, pausing at key points to allow students to fill in the blanks. (3) Guide students through the process of completing the summary. (4) Encourage students to discuss and compare their answers with partners. (5) Review the completed summaries as a class. (6) Provide feedback and clarify any misunderstandings. 1. Fill in the blanks in the summary worksheet. 2. Discuss and compare answers with partners. 3. Participate in the class review. Evaluation Task 1. Accurate completion: ☆☆☆ 2. Active participation: ☆☆☆ 3. Clear communication: ☆☆☆ Design Intentions To reinforce understanding and ensure students can accurately summarize the lecture. Group discussion promotes peer learning and clarifies any doubts. Group Presentation (15 minutes) Research and Presentation (1) Divide the class into small groups. (2) Assign each group a specific aspect of brain power to research (e.g., diet, exercise, sleep). (3) Instruct students to search online for additional information and prepare a short presentation. (4) Provide guidelines for the presentation, including time limits and key points to cover. (5) Allow each group to present their findings to the class. (6) Facilitate a class discussion to summarize and reflect on the presentations. 1. Research assigned aspects of brain power. 2. Prepare a short presentation. 3. Present findings to the class. 4. Participate in the class discussion. Evaluation Task 1. Thorough research: ☆☆☆ 2. Clear presentation: ☆☆☆ 3. Active participation: ☆☆☆ Design Intentions To extend learning beyond the classroom and encourage independent research. Group presentations promote public speaking skills and deepen understanding through shared knowledge. Homework Assignment Review and Practice 1. Review the key terms and their definitions. 2. Summarize the main points of the lecture in your own words. 3. Research and write a short paragraph on how to improve brain function through lifestyle changes. 4. Prepare for the next lesson on the nervous system. Board Design Key Terms and Definitions: Atom: The smallest piece of something that can exist alone. Nerve: A tiny part of the body that helps carry messages to and from the brain. Billion: One thousand million. Cell: A unit of living matter. Organ: A part of the body that has a particular purpose, e.g., the heart. Lecture Summary: Matter: Grey and white matter. Weight: Just over a kilo. Energy Usage: 20% of the body's energy. Number of Cells: Over 100 billion. Messages Sent: Using electrical impulses. Different Areas: Responsible for various functions. Group Presentation Topics: Diet and Brain Function Exercise and Brain Health Sleep and Cognitive Performance Teaching Reflection Areas for Improvement 1. Some students struggled with the technical vocabulary, which could be addressed by providing more visual aids and simpler explanations. 2. The group presentation activity could benefit from more structured guidelines to ensure all groups are equally prepared and engaged. 3. Time management during the listening and summary activities was challenging, and more practice in pacing might help. 学科网（北京）股份有限公司 $$