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This lesson plan outlines a science lesson for 8th grade students on simple machines, specifically inclined planes. The lesson will begin with an introduction and video explaining simple machines. Students will then be divided into groups to identify examples of inclined planes and conduct an experiment using various items to demonstrate how inclined planes make tasks easier. Each group will discuss their results and present their findings. Finally, the teacher will conclude the lesson by summarizing the key points about inclined planes and assigning homework. The goal is for students to understand how inclined planes function and how they are used to move heavy objects with less force.

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LESSON PLAN Education Unit : JHS IPA Terpadu Class : VIII / 2 Subject : Science Topic/ sub topic : Simple Machine / Inclined Plane Time Allocation : 1 x 25 Minutes A. MAIN COMPETENCY 1. Respect and appreciate the teachings of their religion. 2. Respect and appreciate the honest behavior, discipline, responsibility, care (tolerance, mutual assistance), mannered, confident in interacting effectively with the social and natural environment within reach of the association and their presence. 3. Understand and apply knowledge (factual, conceptual and procedural) based on curiosity about science, technology, arts, culture related to the phenomena and events that visible. 4. Try, process, present, and reason in the realm of the concrete (use, describe, assemble, modify, and create) and the realm of the abstract (write, read, count, draw, and compose) according to what has been learned at school and other sources that have the same viewpoint/ theories. B. BASIC COMPETENCY 3.5 Understanding why people create and use simple machines to make tasks easier to perform (mechanical advantage). 4.5 Doing experiment how inclined planes function and how they are used to move heavy objects. C. INDICATORS OF LEARNING 3.5.1 Identifying the simple machine types 3.5.2 Explaining why people create and use simple machine especially inclined plane to make tasks easier to perform (mechanical advantage). 4.5.1 Explaining how inclined planes function 4.5.2 Explaining how they are used to move heavy objects D. LEARNING OBJECTIVES 1. Students can identify the simple machine types after watching a video 2. Students can explain why people create and use simple machine especially inclined plane to make tasks easier to perform (mechanical advantage) after watching a video 3. Students can explain how inclined planes function after doing an experiment. 4. Students can explain how they are used to move heavy objects after doing an experiment E. MATERIALS When we do work, we must expend energy. To conserve our energy and make our work easier, humans have invented a wide variety of machines. Machines are simply devices that help us to apply forces and do work. Some machines, such as

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power saws, tractors, or cars are complicated and have many moving parts. For thousands of years, we have also used many simple machines to help us do our work. Simple machines are devices that change the force we can exert on an object. They allow us to lift heavier objects or pull things with more force than we could without the simple machine. Simple machines often have only one or even no moving parts. The six simple machines that your students will explore in this project are:  Levers  Inclined planes  Wedges  Screws  Wheels and axles  Pulleys Inclined Plane The inclined plane is a very simple machine with no moving parts. It is a sloping surface with one raised end. The more gentle the slope of an inclined plane, the easier it will be to slide or roll the object. A ramp is a common type of inclined plane. Furniture movers use ramps because it is easier to slide or roll a heavy box up a ramp than to lift it up into a truck.A wedge is like an inclined plane, but instead of helping move objects to a higher point, a wedge helps to cut objects apart or hold them together. Knives and axes are common wedges used to cut objects apart, while a door stop is a wedge used to hold objects together. Thesharper the edge of a wedge, the easier it is to drive in or under an object. Screw is use the principle of inclined plane, a screw is a rod with a helical thread (groove) around its outside surface. There is often another matching piece with a hole threaded on the inside. The rod moves through this hole as it is turned. A nut and bolt is an example. Screws have many purposes including fastening objects together (wood or metal screws), making holes in the objects (drill bits), or squeezing things together (a vise). A wood screw is a combination of a screw (the threaded body) and a wedge (the sharp point). F. LEARNING APPROACH/LEARNING MODEL/LEARNING METHODS 1. Learning Approach : Contextual 2. Learning Model : Discovery 3. Learning Methods : Experiment and observation G. LEARNING PROCESS No Activity Discovery’s steps Activities Description Duration 1. Introduction • Teacher greets the students and ask one student to lead the pray; • Teacher check attendance of student. • Teacher Reminds the students to previous lesson about lever; • Teacher starts the lesson with questions that relate the topic to real life : 5 Minutes

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Have you ever climbed the high rise building? How to go to roof top of the building? Why staircase can easier our work? • Teacher tells the learning purpose and advantages to the students; • Teacher devides students into three groups, each group consist of 4-5 students; 2. Core activity 1. Stimulation 2. Problem statemen 3. Data collection 4. Verification and 5. Generalization Observing  Students see a simple machine video’s  Asking  After watching simple machine video’s, student ask to teacher why simple machine easier our work. Then, teacher explain mecanical advantages matter’s  Experiment  Students Identification the example of inclined plane.  Students do inclined plane experiment with some items that have been provided. Assosiating  Student discuss the worksheets that given by teacher. Communicating  Students present the result of discussion  Confirmation of the student presentation by the teacher. 17 Minutes 3. Post Activity  Teacher with Students conclude the material that has been studied 3 Minutes

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 Teacher gives assigment to student.  Teacher end the learning process with prayers and greetings. H. MEDIA, TOOLS AND LEARNING RESOURCES. A. MEDIA -Video - Worksheet B. TOOLS - items that found in daily life (wood, book, string, nail, etc) C. LEARNING RESOURCES Tim Abdi Guru. 2016. IPA TERPADU untuk SMP/MTS Kelas VIII. Jakarta: Erlangga Semarang, June 2017 Headmaster of JHS IPA Terpadu Science Teacher .(_____________________) Risyanti NIP/NIK: NIM. 4001414040

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Lesson plan fixed

  • 1. LESSON PLAN Education Unit : JHS IPA Terpadu Class : VIII / 2 Subject : Science Topic/ sub topic : Simple Machine / Inclined Plane Time Allocation : 1 x 25 Minutes A. MAIN COMPETENCY 1. Respect and appreciate the teachings of their religion. 2. Respect and appreciate the honest behavior, discipline, responsibility, care (tolerance, mutual assistance), mannered, confident in interacting effectively with the social and natural environment within reach of the association and their presence. 3. Understand and apply knowledge (factual, conceptual and procedural) based on curiosity about science, technology, arts, culture related to the phenomena and events that visible. 4. Try, process, present, and reason in the realm of the concrete (use, describe, assemble, modify, and create) and the realm of the abstract (write, read, count, draw, and compose) according to what has been learned at school and other sources that have the same viewpoint/ theories. B. BASIC COMPETENCY 3.5 Understanding why people create and use simple machines to make tasks easier to perform (mechanical advantage). 4.5 Doing experiment how inclined planes function and how they are used to move heavy objects. C. INDICATORS OF LEARNING 3.5.1 Identifying the simple machine types 3.5.2 Explaining why people create and use simple machine especially inclined plane to make tasks easier to perform (mechanical advantage). 4.5.1 Explaining how inclined planes function 4.5.2 Explaining how they are used to move heavy objects D. LEARNING OBJECTIVES 1. Students can identify the simple machine types after watching a video 2. Students can explain why people create and use simple machine especially inclined plane to make tasks easier to perform (mechanical advantage) after watching a video 3. Students can explain how inclined planes function after doing an experiment. 4. Students can explain how they are used to move heavy objects after doing an experiment E. MATERIALS When we do work, we must expend energy. To conserve our energy and make our work easier, humans have invented a wide variety of machines. Machines are simply devices that help us to apply forces and do work. Some machines, such as
  • 2. power saws, tractors, or cars are complicated and have many moving parts. For thousands of years, we have also used many simple machines to help us do our work. Simple machines are devices that change the force we can exert on an object. They allow us to lift heavier objects or pull things with more force than we could without the simple machine. Simple machines often have only one or even no moving parts. The six simple machines that your students will explore in this project are:  Levers  Inclined planes  Wedges  Screws  Wheels and axles  Pulleys Inclined Plane The inclined plane is a very simple machine with no moving parts. It is a sloping surface with one raised end. The more gentle the slope of an inclined plane, the easier it will be to slide or roll the object. A ramp is a common type of inclined plane. Furniture movers use ramps because it is easier to slide or roll a heavy box up a ramp than to lift it up into a truck.A wedge is like an inclined plane, but instead of helping move objects to a higher point, a wedge helps to cut objects apart or hold them together. Knives and axes are common wedges used to cut objects apart, while a door stop is a wedge used to hold objects together. Thesharper the edge of a wedge, the easier it is to drive in or under an object. Screw is use the principle of inclined plane, a screw is a rod with a helical thread (groove) around its outside surface. There is often another matching piece with a hole threaded on the inside. The rod moves through this hole as it is turned. A nut and bolt is an example. Screws have many purposes including fastening objects together (wood or metal screws), making holes in the objects (drill bits), or squeezing things together (a vise). A wood screw is a combination of a screw (the threaded body) and a wedge (the sharp point). F. LEARNING APPROACH/LEARNING MODEL/LEARNING METHODS 1. Learning Approach : Contextual 2. Learning Model : Discovery 3. Learning Methods : Experiment and observation G. LEARNING PROCESS No Activity Discovery’s steps Activities Description Duration 1. Introduction • Teacher greets the students and ask one student to lead the pray; • Teacher check attendance of student. • Teacher Reminds the students to previous lesson about lever; • Teacher starts the lesson with questions that relate the topic to real life : 5 Minutes
  • 3. Have you ever climbed the high rise building? How to go to roof top of the building? Why staircase can easier our work? • Teacher tells the learning purpose and advantages to the students; • Teacher devides students into three groups, each group consist of 4-5 students; 2. Core activity 1. Stimulation 2. Problem statemen 3. Data collection 4. Verification and 5. Generalization Observing  Students see a simple machine video’s  Asking  After watching simple machine video’s, student ask to teacher why simple machine easier our work. Then, teacher explain mecanical advantages matter’s  Experiment  Students Identification the example of inclined plane.  Students do inclined plane experiment with some items that have been provided. Assosiating  Student discuss the worksheets that given by teacher. Communicating  Students present the result of discussion  Confirmation of the student presentation by the teacher. 17 Minutes 3. Post Activity  Teacher with Students conclude the material that has been studied 3 Minutes
  • 4.  Teacher gives assigment to student.  Teacher end the learning process with prayers and greetings. H. MEDIA, TOOLS AND LEARNING RESOURCES. A. MEDIA -Video - Worksheet B. TOOLS - items that found in daily life (wood, book, string, nail, etc) C. LEARNING RESOURCES Tim Abdi Guru. 2016. IPA TERPADU untuk SMP/MTS Kelas VIII. Jakarta: Erlangga Semarang, June 2017 Headmaster of JHS IPA Terpadu Science Teacher .(_____________________) Risyanti NIP/NIK: NIM. 4001414040