Republic of the Philippines Department of Education Region VI – Western Visayas Division of Aklan District of Libacao DAILY LESSON PLAN IN EARTH AND LIFE SCIENCE 11 2ND Quarter I.OBJECTIVE CONTENT STANDARDS: The learners demonstrate understanding of plant and animal reproduction. PERFORMANCE STANDARDS: The learners should be able to value life by taking good care of all beings, humans, plants, and animals. MOST ESSENTIAL LEARNING COMPETENCY: The learners should be able to describe the different ways of how representative animals reproduce. S11/12LT-IIej- 15 At the end of the 50-minute period, the learners should be able to: Identify the types of asexual reproduction. II. SUBJECT MATTER Topic: HOW REPRESENTATIVE ANIMALS REPRODUCE Materials: Self – Learning Module, Activity Sheet, Visual Aids, References: 1. MELCS in EARTH AND LIFE SCIENCE Grade 11 page 509 2. Activity Sheet in Earth and Life Science 11, Quarter 2, MELC 3, Week 3 Process Skills: Observing, Describing, Classifying and Identifying Value integration: Recognize the value of reproduction to survival of all species III. LEARNING TASKS 1. ENGAGEMENT 1. Review Let the students recall their past lesson by allowing the students to identify if the following organisms undergoes sexual or asexual reproduction. Human Chicken Corals Lizard Jellyfish Starfish Rose Shrimp Amoeba Sponges The teacher will ask the questions to access their prior knowledge of asexual reproduction. Some of the questions include: Do all organisms always have two parents? Are there male and female bacteria? The students will answer the questions and explain why they think so. 2. Motivation The class will be divided into three groups. Each group will be given an envelope. Inside each envelope is a puzzle that they need to form and classify if the said organism is reproducing through budding, fission, fragmentation and regeneration, or parthenogenesis. The group who finished first and correctly matched the organisms will be the winner. Budding Fission Fragmentation and Regeneration Parthenogenesis 2. EXPLORATION 1. Each student will be given an activity sheet. 2. They will be given 5 minutes to finish the activity. ACTIVITY 1: ORGANISMS THAT REPRODUCE ASEXUALLY Directions: Classify each organism if it is reproduced through budding, fission, fragmentation and regeneration, or parthenogenesis. Write it on the table provided. Bacteria Yeast Flatworms Jellyfish Sea anemones Archaea Eubacteria Cyanobacteria Molds Lichens Wasps Lizards Budding Fission Fragmentation and Regeneration Parthenogenesis 3. EXPLANATION 1. Presentation of Output Selected learners will share their answers in front of the class. (The teacher will ask how they classified the said organisms.) 2. Answering the guide questions 1. What similarities have you observed from the organisms? (Fusion of the egg cell and sperm cell does not occur in reproduction of these organisms.) 2. How did you group the organisms? (Answer may vary) 3. What have you learned from this activity? (Answer may vary) 4. ELABORATION In asexual reproduction, fusion of the egg cell and sperm cell does not occur, reproduction is mainly through mitosis which creates a clone of the parent. Asexual reproduction can be in the form of budding, fission, fragmentation and regeneration, parthenogenesis. Budding - Occurs when individuals arise throughout the outgrowths from a parent. This can create a colony of individuals attached to a parent. Example: Corals Fission - The separation/division of an organism to form individuals of approximately same size. Example: Animal-like protists Fragmentation and Regeneration - is when an animal’s body breaks into different parts, which later regenerate to form several individuals Example: Sponges, annelids, cnidarians and tunicates Parthenogenesis - is like apomixes (the process of development of diploid embryos without fertilization) in plants, where the egg cell develops without fertilization Example: Bees, wasps, lizards, sharks Not all animals have two parents. Sometimes animals can be made from just one parent. Ask: 1. Why do bacteria reproduce easily? (Bacteria reproduce through fission which does not need two parents to reproduce their kind that is why they reproduce easily.) 2. If one organism stops reproducing, how would it affect the environment? Give one example of an organism and explain. (If one organism becomes extinct, the food chain will be greatly affected and the balance in the ecosystem will be damaged since one organism allows another organism to survive.) 5. EVALUATION Direction: Identify the following organisms whether they reproduce in the form of budding, fission, fragmentation and regeneration, or parthenogenesis. 1. 2. 3. 4. 5. Mastery Level: _______________% Instructional Decision: ____________ 6. EXTEND Direction: List other organisms that is found in your community that reproduces asexually and identify what type. Give at least 5. Prepared and Demonstrated by: MARIEL Z. NALANGAN Teacher I Dalagsaan Integrated School Checked by: ANA MARIE P. GERVACIO Head Teacher I Dalagsaan Integrated School