Is it Too Loud? Biology Lesson Lesson Title: Is it too Loud? Primary Author: Christine Schumacker, Secondary Science Coordinator, Baltimore County Public Schools Background Information Subject: Identify the course the unit will be implemented in. Biology Grade Band: Identify the appropriate grade band for the lesson. Duration: Identify the time frame for the unit. Overview: Provide a concise summary of what students will learn in the lesson. It explains the unit’s focus, connection to content, and real world connection. STEM Specialist Connection: Describe how a STEM Specialist may be used to enhance the learning experience. STEM Specialist may be found at http://www.thestemnet.com/ Enduring Understanding: Identify discrete facts or skills to focus on larger concepts, principles, or processes. They are transferable - applicable to new situations within or beyond the subject. 9-12 45 - 90 minutes “Is it too Loud” is a STEM-centric biology lesson that allows students to develop answers to the complex question Is it too Loud? Students will analyze how the ear and brain work together as a system to perceive and interpret sound. Students will conduct investigations to determine if sound levels are dangerous or acceptable and ascertain which part of the auditory system can be damaged by dangerous sound levels. Students will examine models of the human ear to identify and explain the role and function for each part of the ear required for hearing. A STEM Specialist may be used in a variety of ways in this lesson. Listed below are some suggestions: 1. Engagement – The STEM Specialist can be used to engage students in handson activities that demonstrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms. 2. Exploration – The STEM Specialist can assist students in the development of working models. 3. Evaluation – The STEM Specialist can be used to critique and evaluate student products. The brain is divided into several distinct regions and circuits, each of which primarily serves dedicated function such as auditory perception. The ear and brain work together as a system to perceive and interpret sound. Page 1 of 21 Is it Too Loud? Biology Lesson Background Information How are parts of a system interdependent? Essential Questions: How does the ear and brain work together to process sound? Identify several open-ended questions to provoke How can models be used to predict a system’s behaviors and/or identify inquiry about the core ideas for the lesson. They are failures in functioning? grade-level appropriate questions that prompt intellectual exploration of a topic. How does loud or continuous sound cause damage to the human auditory system? Students will be able to: Student Outcomes: Identify the transferable knowledge and skills that classify sound levels as acceptable or dangerous. students should understand and be able to do when analyze the parts and functions of the human auditory system. the lesson is completed. Outcomes must align with analyze the parts of the ear that are damage due to loud and/or continuous but not limited to Maryland State Curriculum and/or national standards. sound. 1. Students will work in teams to develop a working model of Audience: the ear. ☒Peers Product, Process, Action, Performance, 2. Students will work in teams to produce a short video/public ☒Experts / etc.: Practitioners service announcement to explain how the parts of the ear Identify what students will produce to ☒Teacher(s) work as a system with the brain to produce sound. The demonstrate that they have met the challenge, video will include data pertaining to how loud or continuous ☐School learned content, and employed 21st century sounds impact the hearing system - OR - Students will add Community skills. Additionally, identify the audience they will present what they have produced to. lyrics to the song “ Turn it to the Left” identifying the parts of ☐Online the hearing system damaged by loud or continuous noise. Community ☐Other______ Next Generation Science Standards: HS.LS1 From Molecules to Organisms: Structures and Processes HS-LS1-2 Develop and use models to explain the hierarchical organization of interacting systems working together to provide specific functions within Standards Addressed in the Unit: multicellular organisms. Identify the Maryland State Curriculum Standards and/or national standards addressed in the unit. Maryland Common Core Reading Standards for Literacy in Science and Technical Subjects RST11-12.9 Synthesize information from a range of sources (e.g., text, experiments, simulations) into a coherent understanding of a process, phenomenon, or concept, resolving conflicting information when possible. Page 2 of 21 Is it Too Loud? Biology Lesson Background Information Core Learning Goal 3: Concepts of Biology Expectation 3.2 The student will demonstrate an understanding that all organisms are composed of cells which can function independently or as part of multicellular organisms. Indicator 3.2.1 The student will explain processes and the function of related structures found in unicellular and multicellular organisms. Equipment: Computers Projector Decibel Meter Websites*: Video clip “Turn it to the Left” (song and lyrics) http://speakuplibrarian.blogspot.com/2008/10/turn-it-to-left-song-and lyrics.htmlhttp://www.youtube.com/watch?v=kLSYq5kau_w http://www.youtube.com/watch?v=kLSYq5kau_w Suggested Materials and Resources: Identify materials needed to complete the unit. This includes but is not limited to websites, equipment, PowerPoints, rubrics, worksheets, and answer keys. Free decibel meter from itunes https://itunes.apple.com/us/app/decibel-meter-free/id509979847 Noise Level Evaluation o http://www.asha.org/public/hearing/Noise/ o http://www.dangerousdecibels.org/education/information-center/decibelexposure-time-guidelines/ Parts of the Ear o http://webschoolsolutions.com/patts/systems/ear.htm o http://www.hhmi.org/senses/c110.html ( information about cilia/hair cells) o http://www.neurophys.wisc.edu/h&b/textbook/textindex.html o http://www.sfu.ca/sonic-studio/handbook/ o http://neuroscience.uth.tmc.edu/s2/chapter12.html * Throughout the lesson, students are linked to online resources in order to conduct research. The sites have been Page 3 of 21 Is it Too Loud? Biology Lesson Background Information chosen for their content and grade-level appropriateness. Teachers should preview all websites before introducing the activities to students and adhere to their school system’s policy for internet use. People, Facilities: Location or student stations to record sound STEM Specialist Materials (rubrics, worksheets, PowerPoints, answer keys, etc.): Student Resource 1: Sound Location Graphic Organizer Student Resource 2: Parts of the Ear Teacher Resource 2: Parts of the Ear Answer Key Student Resource 3: The Hearing System Sequence Chain Teacher Resource 3: The Hearing System Sequence Chain Answer Key Student Resource 4: Working Model of the Ear Rubric Student Resource 5 – PSA Video Rubric Student Resource 6 – Lyrics Rubric Page 4 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. ☒Engagement ☐Exploration ☐Explanation ☐Extension ☐Evaluation Details Scientific and Engineering Practices Materials: Projector connected to a computer Speakers Video clip - Turn it to the Left” http://www.youtube.com/watch?v=kLSYq5kau_w Lyrics - http://speakuplibrarian.blogspot.com/2008/10/turn-it-to-leftsong-and-lyrics.html Preparation: Make copies of the lyrics printed for each student. Facilitation of Learning Experience: Students will watch the video clip “Turn it to the Left” (http://www.youtube.com/watch?v=kLSYq5kau_w) Teachers may also provide students with a copy of the lyrics. http://speakuplibrarian.blogspot.com/2008/10/turn-it-to-left-song-andlyrics.html Teacher will ask the following questions (the suggested answers are written below the question): What is the song about? - Sounds which are too loud must be turn down. - To protect your hearing when listening to music turn the volume down. - Turning the volume knob down ….. means turn it to the left. ☒Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out investigations ☐Analyzing and interpreting data ☐Using mathematics and computational thinking ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☐Obtaining, evaluating, and communicating information Page 5 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. Details ☐Engagement ☒Exploration ☐Explanation ☐Extension ☐Evaluation What does it mean to “turn it to the left?” When listening to music turn the volume control knob down or turn it to the left Does the singer identify the parts of the ear damaged by loud music? No... The actual ear parts are not identified. Teacher will introduce the essential questions for the unit: How are parts of a system interdependent? How does the ear and brain work together to process sound? How can models be used to predict a system’s behaviors and/or identify failures in functioning? How does loud or continuous sound cause damage to the human auditory system? Materials: Scientific and Engineering Practices Student Resource 1: Sound Location Graphic Organizer Decibel Sound Meters Radio or other device that emits sound Preparation: Set up stations or identify locations in the school that students can measure sound levels. Facilitation of Learning Experience: Provide students with sound location graphic organizers and decibel / sound meters. Direct students to measure the sound level at each station or location in the school building and record the location and sound level on ☐Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☒Planning and carrying out investigations ☐Analyzing and interpreting data ☐Using mathematics and computational thinking Page 6 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. Details graphic organizer. Teacher will demonstrate for students how to use the sound meter without discussing dangerous sound ranges. Example: The teacher plays a radio in the room and measures the sound using the meter. Students will work in small teams and record the sound level at each station or location. Scientific and Engineering Practices ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☒Obtaining, evaluating, and communicating information Examples: Classroom with students working in groups Cafeteria full of students talking Hallways (with students or without) Music room with students practicing Room with radio playing Students taking part in physical education activities ☐Engagement Materials: ☒Explanation Suggested Resources for Students: http://www.asha.org/public/hearing/Noise/ http://www.dangerousdecibels.org/education/informationcenter/decibel-exposure-time-guidelines/ ☐Extension Preparation: ☐Exploration ☐Evaluation Schedule time for students in the computer lab or schedule use of mobile computer cart. ☐Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out investigations ☒Analyzing and interpreting data Page 7 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. Details Facilitation of Learning Experience: Students will evaluate the noise level collected at each station or location by using resources to classify sound levels as dangerous or acceptable. Students must cite specific evidence from reputable sources to justify their classification of sound. Students will use the information to complete the justification portion of their graphic organizers. Scientific and Engineering Practices ☐Using mathematics and computational thinking ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☒Obtaining, evaluating, and communicating information ☐Engagement Materials: Materials to record student responses. ☐Exploration Preparation: ☐Explanation ☐Extension ☒Evaluation Be prepared to record student responses. This can be done on chart paper, white board, chalk board or SMARTboard. ☐Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out investigations Facilitation of Learning Experience: ☐Analyzing and interpreting Teacher will engage students in a class discussion. Students must justify data their answers with evidence. Record student responses. Which areas of the school had acceptable sound levels? Use data ☐Using mathematics and to support your answers. computational thinking Which areas of the school had dangerous sound levels? Use data ☒Constructing explanations (for to support your answers. science) and designing What factors do you think contributed to the classification of sound levels at different locations (e.g.: student activities, equipment)? Page 8 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. Details Based on your data, how would you define loud noise? Students will create a class definition for loud noise. How do you think sound levels classified as dangerous impact hearing? Scientific and Engineering Practices solutions (for engineering) ☐Engaging in argument from evidence ☐Obtaining, evaluating, and communicating information ☐Engagement ☒Exploration ☐Explanation Materials: ☐Extension ☐Evaluation Student Resource 2: Parts of the Ear Teacher Resource 2: Parts of the Ear Answer Key Material to record student responses Suggested Resources: o http://webschoolsolutions.com/patts/systems/ear.htm o http://www.hhmi.org/senses/c110.html ( information about cilia/hair cells) o http://www.neurophys.wisc.edu/h&b/textbook/textindex.html o http://www.sfu.ca/sonic-studio/handbook/ o http://neuroscience.uth.tmc.edu/s2/chapter12.html Preparation: Be prepared to record student responses. This can be done on chart paper, the white board, or SMARTboard. Schedule time for students in the computer lab or schedule use of mobile computer cart. ☐Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out investigations ☐Analyzing and interpreting data ☐Using mathematics and computational thinking ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☒Obtaining, evaluating, and Page 9 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. Details Facilitation of Learning Experience: Scientific and Engineering Practices communicating information The teacher will engage students in a brainstorming activity. Display a diagram of the human ear. Ask students - Based upon your current knowledge, which part of the ear may be damaged by loud noises? All answers will be recorded. The teacher will provide students with Parts of the Ear handout. Students will use resources (books, websites, charts, models) to analyze the parts of the ear and brain working as a system to process sound and which parts of the ear are impacted by loud and/or continuous sounds. ☐Engagement ☐Exploration Materials: Student Resource 3: The Hearing System Sequence Chain Teacher Resource 3: The Hearing System Sequence Chain Answer Key ☒Explanation Preparation: ☐Extension ☐Evaluation Provide a copy of the Hearing System Sequence Chain to each student. Facilitation of Learning Experience: Students will work in teams to analyze how the different parts of the ear and the brain work as a system and identify the parts of the ear damaged by loud noises. Students may use a sequence chain (sample provided), mind map, or other graphic organizer (e.g: Animoto, Prezi, Jing, Inspiration). Students will conduct research to trace the path that sounds takes to the brain. ☒Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out investigations ☐Analyzing and interpreting data ☐Using mathematics and computational thinking ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☒Obtaining, evaluating, and communicating information Page 10 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. ☐Engagement ☐Exploration ☐Explanation Details Materials: Student Resource 4: Working Model of the Ear Rubric A sound emitting device ☒Extension ☐Evaluation Provide each student with a rubric for developing a working model of the ear. Provide graph paper for students to sketch models or they can use computer software to develop models. Provide a variety of materials so students can create a 3D model working model of the human ear. Facilitation of Learning Experience: Students will work as teams to make a working model of the human auditory system, focusing on the parts of the ear, from household or classroom objects. Students must first sketch their model to scale, identify all items that will be used, and provide a description of how their model will work. All sketches must be approved by the teacher before students can begin to construct their models. To test models, students will place them next to a sound emitting a specified decibel level. ☐Exploration ☐Explanation ☐Asking questions (for science) and defining problems (for engineering) ☒Developing and using models Preparation: ☐Engagement Scientific and Engineering Practices Materials: Student Resource 5 – PSA Video Rubric Student Resource 6 – Lyrics Rubric Flip camera or other recording device ☒Planning and carrying out investigations ☐Analyzing and interpreting data ☒Using mathematics and computational thinking ☐Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☐Obtaining, evaluating, and communicating information ☐Asking questions (for science) and defining problems (for engineering) ☐Developing and using models ☐Planning and carrying out Page 11 of 21 Is it Too Loud? Biology Lesson Learning Experience 5E Component Identify the 5E component addressed for the learning experience. The 5E model is not linear. ☐Extension ☒Evaluation Details Preparation: Prepare copies of the rubric to provide to students Facilitation of Learning Experience: Option 1: Students will produce a short video/ public service announcement (PSA) / to explain how the parts of the ear work as a system with the brain to produce sound. The video must include data about how loud or continuous sounds impact the hearing system. Or Option 2: Scientific and Engineering Practices investigations ☐Analyzing and interpreting data ☐Using mathematics and computational thinking ☒Constructing explanations (for science) and designing solutions (for engineering) ☐Engaging in argument from evidence ☒Obtaining, evaluating, and communicating information Students must add lyrics to the song “Turn it to the Left”. The lyrics must identify the parts of the hearing system damaged by loud or continuous noise. Products of either product can be presented to their class, the teacher, and/or STEM Specialists. Page 12 of 21 Sound Location Graphic Organizer Sound Location Graphic Organizer Location 1 ____________________________ ___________________ Decibels Is this dangerous or acceptable? __________________________ Justification _________________________________________________________________________________________ Location 2 ____________________________ ___________________ Decibels Is this dangerous or acceptable? __________________________ Justification _________________________________________________________________________________________ Location 3 ____________________________ ___________________ Decibels Is this dangerous or acceptable? __________________________ Justification _________________________________________________________________________________________ Location 4 ____________________________ ___________________ Decibels Is this dangerous or acceptable? __________________________ Justification _________________________________________________________________________________________ Location 5 ____________________________ ___________________ Is this dangerous or acceptable? __________________________ Decibels Page 13 of 21 Justification _________________________________________________________________________________________ Parts of the Ear Directions: Complete the table filling in the part and corresponding function of labeled ear structure. Place a check in the box next to structures that may be damaged as a result of loud noise. Outer Ear 1. Middle Ear 3. Inner Ear 5. Middle Ear Part Damaged by Loud Noise 7. 2. 4. 6. 8. Inner Ear 9. 10. 11. 12. Part Function Pinna Collects and directs sound waves down the auditory canal to the tympanic membrane. Parts of the Ear – ANSWER KEY Parts Damaged by Loud Noise 1. Part Pinna 2. Auditory Canal 3. Tympanic Membrane (eardrum) 4. Ossicles (malleus, incus, and stapes) 5. Round Window 6. Oval Window 7. Eustachian Tube 8. Temporal Bone 9. Vestibule 10. Hair cells Cochlea 11. Semicircular Canals 12. Auditory Nerve Function Collects and directs sound waves down the auditory canal to the tympanic membrane. Direct sound waves towards the tympanic membrane. A membrane that vibrates in response to pressure waves traveling from the auditory canal. It is the bridge (or the division) between the outer and middle ears. The three smallest bones in the body. These bones transmit vibrations from the tympanic membrane to the oval window. Flexible membrane at the end of the cochlea canal. Flexible membrane at the beginning of the cochlea. Separate the middle ear space from the inner ear and transmit sound waves to the cochlea. The middle ear is open to the throat at through the Eustachian tube. This tube is filled with air to equilibrate the pressure between the middle ear and outside world. The bone enclosing the middle ear Primarily functions to maintain balance. It is not actually a part of the hearing process. the organ of hearing; A tiny organ (organ of Corti) sits on top of the basilar membrane. This organ contains hair cells, which convert the mechanical energy from the vibrations of the basilar membrane into electrical impulses. Three fluid filled ring-like structures with hairs that are sensitive to motion of the fluid. Semicircular canals sense the position and orientation of the head. They are essential for maintaining balance. Transmits signals from the cochlea, up the brainstem, to the auditory cortex. Image courtesy of: http://www.boystownhospital.org/knowledgeCenter/articles/hearing/Pages/TheNormalEar.aspx The Hearing System Page 16 of 21 The Hearing System – Answer Key The fluid inside the cochlea vibrates a series of tiny hairs called cilia, which are attached to auditory nerves. The movement of these cilia stimulates the nerve cells, and they send signals to the brain via the auditory nerve. The outer ear Sound waves collects and travel through directs sound the auditory waves. canal. The stapes transmits vibrations to the oval window, the opening of the coiled chamber called the cochlea. The brain processes electrical signals into the sounds we hear. Sound waves cause the tympanic membrane to vibrate. The vibration moves the tiny bones in the ossicles (malleus, incus, and stapes). The final step is auditory perception. Multiple regions of the brain work together to identify sound vibrations as familiar sounds or words. Page 17 of 21 PSA/Video Rubric Presentation 2592636 -PSA is unrehear Content & Development 2592619 - Content is incom 1 2 3 4 -PSA/video is unrehearsed. -You did not know your lines or were reading from the script. -All team members did not participate in the production of the PSA/video. -Your PSA/video needed more rehearsal. -Everyone read from the script. -There was not equal contribution to the project in planning and production. -PSA/video was rehearsed. Effort is clear. -Everyone knew their lines. -All members participated in planning and production. -PSA/video was rehearsed and polished. -Everyone knew their lines and presented with enthusiasm. -This was a true group effort. 2592637 2592638 -Your PSA neede -PSA w as rehear - Content is incomplete. - Major points are not clear and /or persuasive. -Unable to answer questions about assigned aid organization. -Purpose is unclear. - Content is not comprehensive and /or persuasive. - Major points are addressed, but not well supported. - Responses to questions are inadequate. - Content is inconsistent with regard to purpose of assignment. 2592620 - Content is not c 2592639 Total Points 2592641 -PSA w as rehear - Content is accurate and persuasive. - Major points are stated. - Responses are adequate and address assignment. - Content and purpose of the writing are clear. 2592632 - Content is comp - Content is comprehensive, accurate, and persuasive. - Major points are stated clearly and are well supported. - Responses are excellent. - Content and purpose of the writing are clear. Total Points 2592642 2592621 - Content is accu Organization & Structure 2592622 - Organization an - Organization and structure detract from the message of the PSA/video. - PSA/video is disjointed and lack transition of thoughts. - Structure of the PSA/video is not easy to follow. - There is a lack of transition and/or flow. 2592624 - Structure is mos 2592623 - Structure is mostly clear and easy to follow. - PSA/video transitions are present. - Conclusion is logical. 2592633 -Structure of the - Structure of the -Structure of the PSA/video is clear and easy to follow. - Transitions are logical and maintain the flow of thought throughout the PSA/video. - Conclusion is logical and flows Total Points 2592643 Length Poor :59 or shorter Fair 1:00-1:29 Good 1:30-2:00 Excellent 2:00 Total Points 2592651 or over 2 minutes Poor <BR>¶:59 or 2592652 2592653 2592654 Good<BR>¶1:30- Excellent<BR>¶2: 2592655 Fair<BR>¶1:00-1: Lyrics “Turn it to the Left” Rubric 1973149 1973150 1973151 Accomplished Proficient Needs Improveme 50 30 20 3 pts Mechanics 1973152 Students have no Students have no spelling errors, and the use of stanzas to represent the song lyrics is clear. The student writing is well written. 2 pts Student has very few mistakes, Stanzas are written but not with a distinct pattern. 1973154 1 pts Student writing is unclear, and filled with fragments and spelling mistakes. The writing is not broken into stanzas. 1973153 Student w riting is Student has very Use of Figurative Language 1973155 The student uses The student uses imagery, repetition, and other figurative languages to give a voice and a clear understanding of what the writer is trying to convey. All parts of the hearing system are correctly identified, including the parts that have been damaged. 1973156 The student uses repetition and conveys the theme through the use of some figurative language. Most parts of the hearing system are identified, including the parts that have been damaged. There is the use of figurative language but there is not the use of repetition in the writing. Some parts of the hearing system are identified, but does not correctly identify the parts that have been damaged. 1973157 There is the use o The student uses Formatting 1973158 The student types his final draft using Times New Roman, Font Size 12 and has a heading and a The student types his final draft but not does give a title to his writing and/or use the proper The student does not type his final piece but turns in a hand-written piece as his final copy. The student types title of his song lyrics. font or size. 1973159 1973160 The student types The student does Working Model of an Ear Based on your understanding of ear anatomy and function, GRADE your model: How did you do? Here’s the original assignment: Your challenge is to make a working model of the human ear so that: When a sound emitting device is placed at the outside of the ear canal, the cochlea will vibrate. All the parts of the ear need to be labeled (see your Parts of the Ear resource sheet) Possible household materials: paper cups, wire, pipe cleaners, straws, aluminum foil, etc. Scoring Rubric: Please circle your score. Score Requirements to earn that score 3 Model must function accurately and thoroughly; model must accurately demonstrate how sound travels in the ear and be labeled according to directions. Model must identify all parts of the ear damaged by loud or continuous noises. 2 Model must function accurately; model is complete with minor errors or misunderstandings. Model identifies some parts of the ear damaged by loud or continuous noises. 1 Model does not function accurately, and some parts show major misunderstandings or are not complete; students did not follow directions to label their model; and students have made no attempt to show how sound travels or one which demonstrates little understanding of how sound travels; Students have made no attempt to identify parts of the ear damaged by loud or continuous noises.