ask two students to come to front of classroom and present them with a long piece of string tied to a wire hanger.
ask one student to hold hanger and other student to pull string tight. That student will flick string with finger, and a vibration will take place along string and cause hanger to also vibrate.
Ask student holding wire hanger to discuss sensations involved when vibration along string reached their body.
be sure to relay to students that light and sound waves are also vibrations that travel through air and are received by eyes and ears.
2 Direct Instruction
Using class text, Psychology, 2nd edition, AP edition by Ciccarelli, et. al. Students will have read pps. 101-104 before class begins. Students have also been earlier presented with vocabulary, and should be able to connect vocabulary with actual application of concepts.
3 Guided Practice
Using PowerPoint slides, teacher will review vocabulary and concepts from text. Special attention is given to ensuring understanding of sound waves and decibels
Teacher will then provide students with drawing of parts of ear, and students will label and include function of each part as class reviews information from text. As each part is discussed, teacher will help students with funcitions.
Teacher will then present the following YouTube video http://www.youtube.com/watch?v=PeTriGTENoc&safe=active This video presents sample sound wave and shows responses of ear parts as it travels through ear.
4 Independent Practice
Students then will pair together and recreate drawing of ear parts and functions.
They will be quizzed on this in two days via blank drawing and quiz on functions.
again have two students come to front of class and display their drawing on ELMO.
Assign reading on pps. 104-106 for tomorrow's discussion on Pitch Theories and Types of Hearing Impairments