Grade Level Learning Area School LESSON EXEMPLAR Teacher Teaching Date Teaching Time Monday Tuesday Wednesday 11 EARTH SCIENCE Quarter 1 No. of Days 2 Thursday Friday I. OBJECTIVES A. Content Standards B. Performance Standards C. Most Essential Learning Competencies (MELC) The learners demonstrate an understanding of the subsystems (geosphere, hydrosphere, atmosphere, and biosphere) that make up the Earth. The learners shall be able to make a concept map and use it to explain how the geosphere, hydrosphere, atmosphere, and biosphere are interconnected. Explain that the Earth consists of four subsystems, across whose boundaries matter and energy flow. (S11/12ES-Ib-4) (If available, write the indicated MELC) D. Enabling Competency (If available, write the attached enabling competencies) II. CONTENT EARTH’S SUBSYSTEMS III. LEARNING RESOURCES A. References a. Teacher’s Guide Pages b. Learner’s Material SHS EARTH SCIENCE Learner’s Materials, pages 22-37 Pages c. Textbook Pages d. Additional Materials from Learning Resources B. List of Learning Resources for Development and Engagement Activities IV. PROCEDURES A. Introduction What’s New (Intro of the New Lesson) Directions: Highlight and list down the words associated to the different Earth’s subsystem. What I Need To Know Most Essential Learning Competency Explain that the Earth consists of four subsystems, across whose boundaries matter and energy flow. After going through this module, the learners are expected to: 1. identify the four subsystems of the earth; 2. distinguish the characteristics of each subsystem; 3. explain how matter and energy flow in the subsystems; and 4. trace the flow of matter and energy in the subsystems. What I Know The learners will answer a 15-item pre-test of the lesson on pages 23-25 of the learner’s material. What’s In (Drill or Review of Previous Lesson to Connect it to New Lesson) Earth is the third planet from the sun and considered as haven for many life forms. As a closed system, it serves as harbor of life for billions of years and still continue to comfort innumerable life forms. Thus, Earth itself has different systems that interact with other to provide all the necessities in order for life to continue to prosper. Activity. Directions: Analyze the given illustration below and answer the following questions briefly. B. Development Questions: 1. What are the components the terrarium? 2. What are the functions of each component in the terrarium that enable life to sustain on it? What Is It Discuss the Earth’s subsystems and the flow of matter and energy in them. See lesson content and discussion on the learner’s material, pages 28-29. What’s More A. Directions: Identify the numbered figure below and give the correct subsystem it represents. Figure Subsystem 1 2 3 4 5 6 B. Direction: Write T if the statement is true and F if the statement is false. __1. Earth is a multi-part system of interrelating physical, chemical and biological processes. __2. Atmosphere serves as the solid part of the Earth. __3. Biosphere is considered as the life zone of the Earth. __4. Earth is a dynamic entity with various separate but highly interrelating C. Engagement subsystems. __5. Hydrosphere includes all water on the Earth’s surface only. __6. Earth can sustain and flourish life form due to its components. __7. Matter and energy flows and cycle between the two subsystems to sustain and make life on Earth possible. __8. Changes in any sphere greatly affects the other spheres. __9. Any disturbance and interference in the flow of the matter and energy does not affect any of the subsystems. __10. Both the biotic and abiotic components of the earth interact with each other in the biosphere. What I Can Do Directions: Read the statement below and answer the question that follow. This past few years Philippines experiences many devastating calamities that cause many losses of lives in different areas. Strong typhoons that cause flash floods, mud slides and storm surges in the areas of Rizal, Leyte and Samar clearly manifest that the climate change is real. Using the knowledge, you have learned on the interactions of Earth’s subsystems, what simple ways you can do or contribute in order to lessen the effect or to fight the natural calamities? Explain your answer. What Other Enrichment Activities Can I Engage In (Additional Activities) Have a research on the different projects done by the Philippine government in order to battle climate change and other environmental issues. What I Have Learned A. Directions: Using the flow chart, identify the subsystems interacting in the carbon and oxygen cycle shown in the picture below. D. Assimilation B. Directions: Fill in the blank with the correct word or phrase to complete the discussions of the carbon and oxygen cycle. In the process of 1_______________, atmospheric carbon is absorbed by plants. This carbon is transferred from 2__________________ to the 3___________________ feeding on them, and further moves up the food chain. 4__________________, ________________, and ________________ of plants and animals result in some transfer of carbon back to the atmosphere. Some of these living beings buried millions of years ago have been converted to fossil fuels. 5__________________ and burning of fossil fuels cause this carbon to move from the lithosphere to the atmosphere. Some of this atmospheric carbon gets dissolved in the oceans and thus, completes the cycle. Oxygen is naturally occurring in the air. Oxygen is also considered as the most common 6________________ of the human body. It plays a vital role in life forms. This also serves as an essential element in different biomolecules. All aerobic organisms use free oxygen for respiration. They 7________________ oxygen from the environment and use it in the process of respiration while 8 _________________ carbon dioxide. All green plants use carbon dioxide during the process of 9_________________ and release oxygen back into the atmosphere as a by-product. Animals exhale carbon dioxide back into the atmosphere which is again used by the plants during photosynthesis. Now oxygen is released back to the atmosphere. What I Can Do (Assessment) Answer the 15-item assessment of the lesson in the learner’s material on pages 35-36. V. REFLECTION Ask the learners to complete the sentence with their most essential understandings or take away from the lesson. They must write this in their journal. I understand that _____. I realized that _____.
