Reflection: Rigor iPhone, iSpy: Cell Phone Triangulation - Section 4: Elaborate

 

Please note that this activity is designed for much older students in a high school math classroom. The objective, as it is designed, is to apply the Law of Sines and Cosines to determine angles and distances in triangles. Sines and Cosines are mentioned in the activities, and students will immediately question their meaning, as they have not yet covered this in math class. It is suggested to discuss this activity with your math teacher to see if s/he can provide support with the geometry concepts addressed. However, it is NOT necessary to discuss the Laws of Sines and Cosines in order to be successful.  By providing a little front loading on angle relationships in triangles, as well as area/perimeter of triangles  this is all that would be needed to be successful with this lesson.

While some students will get the math behind the activity and will be able to complete this independently, many will need modeling and/or support throughout the entire activity, which I gladly provide. My goal is for students to experience and understand forensic science processes, and not to necessarily get the math at this time. It's definitely an added bonus if they do, but it is not a requirement. 

This activity addresses both 6th and 7th grade Common Core geometry standards:

CCSS.Math.Content.6.G.A.1
Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.

CCSS.Math.Content.7.G.B.5
Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

  Math Activity
  Rigor: Math Activity
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iPhone, iSpy: Cell Phone Triangulation

Unit 5: Forensics
Lesson 13 of 15

Objective: SWBAT understand how triangulation can be used to track cell phone location.

Big Idea: Cell phones have made communication exponentially easier, and they have done the same for crime investigation!

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