7e Lesson Plan For Deped 5j6g37

TOPIC GRADE LEVEL TIME ALLOTMENT TEACHERS

Hydrocarbons: Alkanes Grade 9 1 Hour Mr. Hamilton C. Remigio, Mr. Jethromel M. Meneses, and Mr. Arnel S. Bandiola

CONTENT The Variety of Carbon Compounds Organic Compounds CONTENT STANDARD The learners demonstrate an understanding of the type of bonds that carbon forms that result in the diversity of carbon compounds. LEARNING COMPETENCY The learners should be able to recognize the general classes and uses of organic compounds. CODE S9MT-IIh-18 LEARNING MATERIALS Chemistry III Textbook. Mapa, Amelia P., Ph.D., et al. 2001. pp. 356-367. Science and Technology III. NISMED. 1997. pp. 331-340. Science and Technology III: Chemistry. OBJECTIVES With the use of locally-available materials in the community, the Grade 9 students should be able to: 1. describe the physical and chemical properties of alkanes; 2. give common examples of alkanes and mention their uses; 3. perform combustion reaction of alkanes; 4. observe teamwork and cooperation in doing the activities; 5. identify job careers related to the production of alkane-based products; and 6. propose solutions to air pollution issues caused by the use of fossil fuels (alkanes). 1. ELICIT- 3 mins. [English] Have the students recall the three types of chemical bonds. Ask them to briefly explain each.

MATERIALS

Emphasize that covalent bonding is exhibited by hydrocarbons, one of the general classes of organic compounds. Through the Socratic method and using common objects in the environment let the students realize that hydrocarbons are found everywhere. This will serve as a spring board in asking the trivial questions later on.

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2. ENGAGE- 5 mins. [English, Social Studies, Math] Show a picture of fractional distillation to the class and let the students identify it. Then ask the following questions: 1. What industry makes use of fractional distillation? 2. What common products are obtained in the fractional distillation? Students are expected to give fuel products. Ask these follow up questions: 3. What do vehicles use for them to run? 4. Do you know where the gasoline stations in Laoag City are located? 5. What are these gasoline stations? 6. Which gasoline station offers the cheapest price for one Liter of their variety of products? 3. EXPLORE- 20 mins. [English, Math, TLE] Divide the students into groups of five. Each group has its own leader, secretary, time-keeper, presenter, and material manager. The students will bring-out the materials that were assigned to bring. Likewise, provide the needed laboratory apparatuses. Discuss the objectives and procedure of the activities. Further, review safety procedures in the conduct of the experiment. Let the students perform the activity and answer the guide questions. Do maximum supervision while the students perform the group activity. Activity: Investigating Physical and Chemical Properties of Alkanes 1. Describe the color, odor, and texture of the following materials: gasoline, kerosene, paraffin wax (candle), and lubricating grease. 2. Dissolve a sample amount of the materials mentioned in number 1 in water and describe what happens. 3. Using a matchstick, carefully burn a sample amount of the materials mentioned in number 1 and describe what happens. 4. EXPLAIN- 10 mins. [English, Math] After the activity, the students present their answers to the guide questions. A representative in each group will present and discuss the observations and answers to the guide questions based on the experiments conducted.

Projector Laptop Picture of fractional distillation

MATERIALS Projector Laptop Worksheet Gasoline kerosene Paraffin wax (candle) Lubricating grease Graduated cylinder Beakers Matchstick Watch glass

Worksheet

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5. ELABORATE-10 mins. [ICT, Engineering, Social Studies, Edukasyon sa Pagpapakatao, Environmental Science] Strengthen the concepts gained by the students in the activities through lecture-discussion and video-clip presentation containing fractional distillation and the other uses of alkanes. Correct misconceptions, as the need arises.

Projector Laptop Marker White board

Further, discuss the possible careers related to the extraction and purification of fuels like chemical, petrol, mechanical, and industrial engineering. Address the last three questions in the Elicit part by asking students the effects of putting up gasoline stations in populated areas. Ask other concerns on the use of fossil fuels. 6. EVALUATE-10 mins. [Math, English] ister a short paper-pencil test. TRUE OR FALSE. Analyze the following statements. Write TRUE if the statement is correct, otherwise write FALSE. Erasures are NOT allowed. 1. Alkanes are soluble in water. 2. Alkanes have low boiling points. 3. Pentane and butane are mainly used as fuel in the form of Liquefied Petroleum Gas (LPG). 4. When alkanes undergo combustion with insufficient amount of oxygen, carbon monoxide is produced as one of the products. 5. Alkanes are unsaturated hydrocarbons. MULTIPLE CHOICE. Select the correct answer. Write the letter only. 6. What is the chemical formula of nonane? a. C9H16 b. C9H17 c. C9H18 d. C9H20 7. What do you call the process of separating the components of a mixture like crude oil which have different boiling points by means of vaporization? a. Simple Distillation c.Fractional Distillation b. Cracking d. Dewaxing 8. Cetane, C16H34 is one of the products of fractional distillation of crude oil, commonly found in _____. a. gasoline c. diesel oil b. kerosene d. antiknock agent 9. The 'clean' or complete combustion of methane (natural gas) produces _____. a. carbon monoxide and water b. carbon and water c. carbon dioxide and water d. carbon dioxide and hydrogen

MATERIALS Paper Ballpen Test Question

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10. The following are characteristics of alkanes EXCEPT _____. a. soluble in water c. insulator b. low melting point d. involves covalent bonding 7. EXTEND-2 mins. [MAPEH, TLE, English, Filipino, ICT, Social Studies] Students (in group) will be given the freedom to choose from one of the following activities as an output: 1. Poster-slogan 2. Poem writing 3. Music video 4. Infomercial 5. Dubsmash 6. Essay

Laptop Video Recorder / Cellphone Crayons Illustration Board Paper Ballpen Pencil Marker

The unified theme for the various activities is “Alkanes: Revolutionizing Life. Each output shall be evaluated based on the following criteria: Creativity – 10 points Content – 10 points Clarity of Message – 10 points Total – 30 points Students are given time to plan and prepare for their chosen group activity. Presentation shall be made on an agreed time.

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