SEMI DETAILED LESSON PLAN IN SCIENCE

I. OBJECTIVES

At the end of the 30 minutes lesson, the students should be able to: Define Food Chain Identify proper arrangement of food chain, primary producers, consumers and decomposers Draw and explain food chains and its importance in our environment

II. SUBJECT MATTER

A. Topic:The Food ChainB. Referencehttp://www.vtaide.com/png/foodchains.htm

http://www.sheppardsoftware.com/content/animals/kidscorner/foodchain/foodchain.htm

http://www.enchantedlearning.com/subjects/foodchain/C. Materials:Laptop, Powerpoint Presentation, Manila Paper, Coloring Materials

III. PROCEDURE

A. Routinary Activities1. Prayer2. Greetings3. Checking of Attendance

4. Review

Ecosystem is a community of living organisms (Plants, Animals, and Humans) in conjunctions with the non-living components (Air, Sun, Water) of their environment, interacting as a system.

B. Motivation

The students will be shown a picture of an environment with different living organisms. They will be asked to identify the living organisms in the picture and what those living organisms usually eat and consume that can also be found in the picture.

C. Lesson Proper

Task 1: Lecture-Discussion

The teacher will now present the concept of food chain and its sub topics.

A food chain is the sequence of who eats whom in a biological community to obtain nutrition. A food chain starts with plants or other autotrophs (organisms that make their own food from light or chemical energy) that are eaten by herbivores (plant-eaters). The herbivores are eaten by carnivores (meat-eaters). These are eaten by other carnivores or omnivores. When organism dies, it is eaten by decomposers and then broken down and the exchange of energy continues.

A producer is an organism that makes its own food from light energy (using photosynthesis or chemosynthesis). Most green plants, many protists and most bacteria are producers. Producers are the base of the food chain.

A consumer is a living thing that eats other living things to survive. It cannot make its own food. Primary consumer eats producers, secondary consumer eats primary consumer and so on. There are always many more primary consumers than secondary consumers, etc. This is because that energy is lost between each level.

A consumer may be classified into three categories namely herbivore, carnivore and omnivore. Herbivores are animals that eat plants. Herbivores are also called primary consumers. Most animals are herbivores. Carnivores are animals that eat meat. Carnivorous animals often have sharp teeth and powerful jaw. Omnivores are animals that eat both animals and plants. Some omnivores include humans, monkeys and marmosets, chimpanzee and most bears.

A decomposer is an organism that breaks down organic matter. Some bacteria and fungi and worms are decomposers. What they leave behind is used by primary producers.

Task 2: Games

The students will be divided into five groups and will be shown pictures and they will arrange it properly to form a food chain. They will identify the primary producers, consumers and decomposers.

Set No. 1

Answer: Grass-Grasshopper-Rat-Snake-Eagle-WormSet No. 2

Answer: Algae-Fish-Seal-Shark

Set No. 3

Answer: Corn-Rat-Cat-Mushroom/Fungi

Set No.4

Answer: Plant-Rabbit-Wild Cat-Lion-Worm

Set No. 5

Answer: Algae-Shrimp-Fish-Seal-Polar Bear

Set No. 6

Answer: Plant-Dragon Fly-Frog-Snake-Human

Set No. 7

Answer: Plants-Caterpillar-Chicken-Monitor Lizard-Worm

D. GENERALIZATION

Afood chainshows how each living thing gets its food. Some animals eat plants and some animals eat other animals. For example, a simple food chain links the trees & shrubs, the giraffes (that eat trees & shrubs), and the lions (that eat the giraffes). Each link in this chain is food for the next link. A food chain always starts with plant life and ends with an animal.In a food chain, energy is passed from one link to another. When a herbivore eats, only a fraction of the energy (that it gets from the plant food) becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore to carry out its life processes (e.g., movement, digestion, reproduction). Therefore, when the herbivore is eaten by a carnivore, it passes only a small amount of total energy (that it has received) to the carnivore. Of the energy transferred from the herbivore to the carnivore, some energy will be "wasted" or "used up" by the carnivore. The carnivore then has to eat many herbivores to get enough energy to grow.

E. APPLICATION

The students with their respective groups will be given Manila paper and drawing materials. They will be asked to draw their own food chain. Afterwards, they will be asked to explain their drawings.

IV. EVALUATION

A short quiz will be given to the students. They will be asked to identify and classify primary producers, consumers-herbivore, carnivore, omnivore and decomposers.

QUIZ:Classify The Following:PlantsCarabao CobraHumans MushroomsGoatBacteria Lion PandaFungi TigerSpiderAlgae GiraffeDeerCorn Worms ChickenPalay Cat SharkHorse DogEagleTrees AligatorBirdWhale SeahorseGrass

ProducersConsumersDecomposers

HerbivoreCarnivoreOmnivore

V. ASSIGNMENT

No Assignment

Prepared By:

LEONARD C. MAGDANGALTCP Batch 05