Time: 40 min LESSON SUMMARY FOR: DATE STARTED: DATE COMPLETED: The learners must be able to: Identify the basic internal structure of the human ear ⦁ LESSON OBJECTIVES State the functions of various structures of human ear ⦁ Use of mind map to summarise information ⦁ TEACHER ACTIVITIES LEARNER ACTIVITIES TIMING RESOURCES NEEDED Learner respond to informal 10 min Model of human ear Lesson presentation using blackboard / transparencies revision Introduction CAPS Solutions for All – Teacher revise different parts of human ear Learners place functions Life Science Gr 12 by (in blue) in boxes on mind map Main Body (Lesson presentation) provided. McMillan Teacher highlights the functions of the following parts of the human ear: Pinna – captures sound waves into the auditory canal Learners complete functions on Auditory canal – carries sound wave from pinna to tympanic membrane the mind map. SIIP Booklets for 2014 (ear drum). Also produces wax that traps dust and insects preventing it compiled Question from reaching ear drum. H/work: Using textbook papers and answer Tympanic membrane – pick up sound wave and starts vibrating. learners complete assigned booklets Vibration carried to the Malleus in middle ear. homework Malleus–receives vibration from ear drums and carries vibration to incus. Worksheets Incus- receives vibration from malleus and carries vibration to stapes. Stapes— receives vibration from incus and carries vibration to oval Focus on Life science window. CAPS Gr 12 by Maskew Oval window – membrane that carries vibration into the cochlea. 20 min Miller Round window - membrane that carries vibration from the cochlea into the middle ear. Here vibration is finally lost. Understanding Life Eustachian tube- helps to maintain equal pressure on both side of the science Gr.12 by T ear drum. Isaac – 3rd Edition Cochlea – vibration stimulate receptor cells in organ of Corti which generate an impulse that is sent to cerebrum to be interpreted Life Science Gr 12 – Top Vestibule- contains utriculus and sacculus that are involved in balance Class by Shuter’s. and equilibrium Semi-circular canals – involved in balance and equilibrium Via Afrika Life Science Auditory nerve –carries impulses from vestibule and cochlea to brain GR 12 (CAPS) Conclusion Teacher facilitates the completion of the functions on mind map. Mind map and
Time: 40 min LESSON SUMMARY FOR: DATE STARTED: DATE COMPLETED: LESSON OBJECTIVES The learners must be able to: ⦁ Identify the basic internal structure of the human ear ⦁ State the functions of various structures of human ear ⦁ Use of mind map to summarise information TEACHER ACTIVITIES LEARNER ACTIVITIES TIMING RESOURCES NEEDED Lesson presentation using blackboard / transparencies Introduction Teacher revise different parts of human ear Main Body (Lesson presentation) Teacher highlights the functions of the following parts of the human ear: Pinna – captures sound waves into the auditory canal Auditory canal – carries sound wave from pinna to tympanic membrane (ear drum). Also produces wax that traps dust and insects preventing it from reaching ear drum. Tympanic membrane – pick up sound wave and starts vibrating. Vibration carried to the Malleus in middle ear. Malleus–receives vibration from ear drums and carries vibration to incus. Incus- receives vibration from malleus and carries vibration to stapes. Stapes— receives vibration from incus and carries vibration to oval window. Oval window – membrane that carries vibration into the cochlea. Round window - membrane that carries vibration from the cochlea into the middle ear. Here vibration is finally lost. Eustachian tube- helps to maintain equal pressure on both side of the ear drum. Cochlea – vibration stimulate receptor cells in organ of Corti which generate an impulse that is sent to cerebrum to be interpreted Vestibule- contains utriculus and sacculus that are involved in balance and equilibrium Semi-circular canals – involved in balance and equilibrium Auditory nerve –carries impulses from vestibule and cochlea to brain Conclusion Teacher facilitates the completion of the functions on mind map. Learner respond to informal revision Learners place functions (in blue) in boxes on mind map provided. Learners complete functions on the mind map. H/work: Using textbook learners complete assigned homework 10 min 20 min Model of human ear CAPS Solutions for All – Life Science Gr 12 by McMillan SIIP Booklets for 2014 compiled Question papers and answer booklets Worksheets Focus on Life science CAPS Gr 12 by Maskew Miller Understanding Life science Gr.12 by T Isaac – 3rd Edition Life Science Gr 12 – Top Class by Shuter’s. Via Afrika Life Science GR 12 (CAPS) Mind map and