Trigonometry Connections - Title: GradeFocus:10,11,12...

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Trigonometry Connections - TEACHER INSTRUCTIONS Title:  Building on Right Triangles - Trigonometry in the Real World  Grade Focus: 10, 11, 12  Subject: Mathematics Integration Activity: Discovering the Internet, PowerPoint Presentations Recommended Time to Completion: Five to six weeks (one class period each week) INTRODUCTION  This lesson will focus on the real life applications of trigonometry.  The students explore the  principles and applications of trig via the Internet, and then create a presentation of their  findings to the class. The students may work individually or in groups.   PREREQUISITE EXPERIENCE:  The students should be able to conduct online research and use a word processor.  Prior experience with PowerPoint or other presentation software would be helpful.   TEACHER PREP TIME:   About 1 hour.   Review the web resources on trigonometry and its applications in the  Explore  section.  Review the PowerPoint tutorials: Nortel LearniT:  Technology: PowerPoint Presentations http://www.nortellearnit.org/LearniT/technology/PowerPoint_Presentations/ PROJECT:   The learners will use the web to conduct their research on the principles of  trigonometry and how these mathematical facts are used in various “real world”  applications.  The students will choose one practical application of trig and explain it to  the class via a PowerPoint presentation.   ASSESSMENT / GRADING: Students will be evaluated on their understanding of trigonometry basics, the  organization of their presentation, their basic skills with the presentation software, and  their ability to demonstrate an understanding of how the mathematics are applied in  their chosen scenario.  See the rubric provided in the  Evaluate  section.  
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TIME MANAGEMENT TIP: Prescreen the online resources listed in the  Explore  section, and limit the students’  choice of trigonometry application to two or three categories.  This will reduce the time  needed for exploration and decision making, and focus more time on the actual  application and how to present it to the class.   Have students work in teams to conduct research and create slides to combine into the  final presentation.   To help with limited computer access during class time, supplement online resources  with books from the school library, drawings from local business, or resources from a  local technical college or university.   
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Suppose you were asked to estimate the cost of materials needed to build a new bridge  over the river running through your town.  Of course you would need to know the length 
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