SCIENCE AND HEALTH V

45. Date: ____________

I.OBJECTIVE:Explain the importance of plants to human beings and other animals.

Values:Appreciation of the usefulness of plants; Patience in performing a task

II.SUBJECT MATTER:The Importance of Plants

A.Science Concepts/Ideas: The oxygen that our body needs come from plants. Plants are useful to humans and animals. They provide habitat, medicines food and clothing. Many of the products that people use come from plants such as wood, paper, rubber, chewing gum. Plants make our environment beautiful.

B.Processes:Describing, observing, identifying

C.Materials:Samples of plants used for food Samples of the products that people used from plants

References: Teacher's Module Science and Health V Jessie A. Villegas Into the Future: Science and Health V

III.PROCEDURE:A.Preparatory Activity:Checking of AssignmentReview: Present advertising materials related to clean environment. Identify the gaseous pollutants. Recall the importance of carbon dioxide to plants and oxygen to animals and humans.

B.Developmental Activities:1.Motivation

2.Presentation/ActivityForm two groups. Each group will perform specific activity.

Group I Present the diagram - of oxygen carbon dioxide cycle. Let the pupils identify the two processes involved in this cycle (respiration and photosynthesis). Ask them what gas is given off as a by-product of respiration (carbon dioxide) and photosynthesis (oxygen). Explain that the continuous and repeated exchange of gases during respiration and photosynthesis produces a cycle.

Group II Let the pupils cite examples of pfant products, such as food, paper and clothing. Discuss many of the products that people use which come from plants.

3.Concept Formation Each group will present their findings. Make conclusions regarding their activity. Teacher may ask questions that may lead to the conclusions that most of our products we, use come from plants. Each group will give the products and their uses.

4.Application Now that they have learned the benefits we can derive from plants, they will discuss on how are certain parts of plants used by man. To draw the generalization, ask: Why are plants useful to humans and animals? After discussion, they will make collage using mixed media from plants to know the result of their discussion. (Teacher to give guidelines on preparation of collage.)

IV.EVALUATION:Make an essay about what would happen if there would be no trees/plants. Explain the importance of plants to humans and lower form of animals.

V.ASSIGNMENT:Enumerate the parts of plant used for food.