Lesson Plan : Simple Machine Efficiency
Teacher Name: | Alex Wampler |
Grade: | Grade 9-10 |
Subject: | Science |
Topic: | Understanding Machine Efficiency |
Content: | Vocabulary Force in (effort) Force out (resistance) Distance in (effort) Distance out (resistance Simple Machine Work in Work out Power Mechanical Advantage Efficiency Ratio Friction |
Goals: | SC.PS.02.02.061 EXPLAIN HOW THE EFFICIENCY OF MACHINES CAN BE EXPRESSED AS A RATIO OF WORK OUTPUT TO WORK INPUT. SC.PS.01.02.061 COMPARE THE EFFICIENCY OF SIMPLE MACHINES. |
Objectives: | -Given 12 vocabulary words, students will be able to demonstrate understanding by correctly using 9 out 12 words in a sentence or paragraph without using notes. -Given the work in and work out, students will be able to calculate the machine efficiency 8 out 10 times without using notes. -Given work in and efficiency student will be able to calculate work out 4 out 5 times without using notes. -Students will demonstrate an understanding of the effect friction has on machine efficiency by analyzing data from an experiment that they conduct and writing an appropriate conclusion. The conclusion will include three possible causes for increasing friction. -Students will compare and contrast the efficiency of two or more simple machines and explain three possible causes of the any differences found in complete sentences. |
Materials: | Computer Projector Screen Whiteboard Whiteboard markers Individual Whiteboards Simple machines Lab Friction Lab |
Introduction: | Demonstrate lifting a 100 kg sandbag using a lever. |
Development: | Use Brainpop movies on simple machines and efficiency to develop concepts and vocabulary. Review finding work when force and distance are known. Demonstrate how to determine efficiency when given the work in and work out. Demonstrate how to determine work out given work in and efficiency. Demonstrate how to increase and decrease friction in simple machines. |
Practice: | Brainpop worksheets on vocabulary and practice quizzes. Practice Vocabulary playing concentration with vocabulary cards.(Word - definition, Word - Picture) Use graphic organizers to show relationships between force, distance, work and efficiency, friction, and simple machines. Practice finding efficiency using work in and work out on individual whiteboards. Practice finding work out using work in and machine efficiency on individual white boards. Perform Friction Lab Perform Simple Machine Lab |
Accommodations: | Learning Disability Allow drawing pictures in place of writing sentences for vocabulary to minimize stress due to poor reading and writing skills. Preferential seating with a peer tutor to help with review and understanding of material. Using graphic organizers to help students make connections between concepts. Allow use of calculators on calculations to minimize stress due to poor math skills. Read tests and quizzes to students for better understanding of what the question is asking. Allow more time on tests and quizzes provides more think time. Provide opportunity for oral or computerized test. Collaborate with math teachers to include work and efficiency calculations to provide students with more practice. Use Clicker system to allow for immediate feedback on correct answer. Emotional/Behavior Disorder Preferential seating to minimize possible conflicts Reduce participation and social anxiety by using computerized clickers to evaluate progress when conducting individual whiteboard exercises. Allow individual testing either written or oral, more time to take tests, and/or allow for breaks during test to minimize test taking anxiety. Mental Retardation Preferential seating and peer tutor to help with socialization issues. Enlist the aid of class members in providing positive reinforcement for appropriate behavior. Allow drawing pictures in place of writing sentences for vocabulary and emphasize real life application. Preferential seating with a peer tutor to help with review and understanding of material. Using graphic organizers to help students make connections between concepts. Break down concepts into smaller chunks. Write worksheets that emphasize how to use concepts in everyday life and the consequences. Allow use of calculators on calculations and provide steps to arrive at the correct answer to the student. Adjust labs as necessary to ensure student safety and to emphasize real world applications. Read tests and quizzes to students for better understanding of what the question is asking. Allow more time on tests and quizzes provides more think time. Provide opportunity for oral or computerized test. Physical Disabilities and Health Impairments. Use web cam technology and para educator support to allow student to attend class from home when necessary. Follow up with visits. Use course management system,such as Moodle or Blackboard, to provide student access to resources. Video lessons and post on the course management system website. Provide preferential seating to allow for disability. Allow shorter assignments and testing. Allow use of oral or computerized testing. Use clicker system to minimize physical stress. Allow longer to take test with breaks or break test up into smaller pieces. Allow para educator to write answers to test. |
Checking For Understanding: | Daily quiz on concepts and vocabulary. Formative Assessment on the completion of the lesson. Summative Assessment on completion of the unit |
Closure: | Daily Summary Play Jeopardy game to review vocabulary and concepts. Review formative and summative assessments. |
Evaluation: | |
Teacher Reflections: |
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