Essential Question: How is symmetry used in the real world?
1. Introduce the idea of symmetry with several examples of simple geometric objects (squares, rectangles, triangles), letters of the alphabet (A, D, E, etc.) which exhibit symmetry. Show some examples of real world objects which exhibit symmetry. DO NOT give students a definition of symmetry, but show examples and draw lines of symmetry in the examples given.
2. Student task: based on the examples shown, write your own definition of symmetry.
3. Compare your definition of symmetry with the definition given at the following website: Line of Symmetry Definition. How is your definition the same as the one given online? How is it different?
4. Complete this Online Symmetry Exercise to better understand symmetry in Geometry.
5. Find a real world example of symmetry. Provide either a picture or a drawing depicting your image and explain what it is and where you found it. An example would be one of the car logos referenced in this blog site.
6. Design your own image of symmetry for a real world object - either real or imaginary - of your choosing.
Students will submit their definition of symmetry and the comparison of similarities / differences.
Students will submit their real world example and the object which they created.
Here is how this lesson lines up with my education goals.
1. Teach students basic concepts and skills. This is a great introduction to the math concept of symmetry.
2. Teach students in engaging ways. Kids love the web. This exercise gives them hands on opportunities to explore on the web and create their own symmetric designs.
3. Apply math skills to real world problems. The students identify real world uses of symmetry.
4. Teach students problem solving methods. There are no explicit problem solving techniques in this problem, but exploring the web to solve this problem is one way in which students will solve problems in the real world.
5. Teach students to work in collaborative ways. As part of this project, students will work on computers and will likely collaborate with other students on their task. This is not a 'team' project, but it does encourage working with others.