Geometry Discussion

For the last few days we have been talking about geometry and how it is all around us. The boys were given words they were required to research on their own and then teach their words to the class. We used Google Docs to put the slide show together. I asked the boys, "How does Geometry shape our world?" The discussions we have been getting into are amazing. The boys have really been digging deep into the vocab and seeing how it relates to the world around us.
1. Where are rays represented in our world?

Is a piece of hair a ray?

Are your fingernails rays?
We have decided with a lot of discussion that both these things are rays. The boys supported this answer by explaining how your hair starts at the scalp like the end of a ray and your hair can grow forever on the other end like the other end of a ray. The same thing happens with your figure nails. One end can go on forever and the other has a stopping point.

2. Are points considered a zero dimension if points make up lines and lines are one dimension?
When we talk about the definition of a point it talks about a point having no depth and no length. Therefore we concluded that a point does not have a dimension. A point does have a zero dimension.

3. Is a circle a plane and made up of lots of little lines?
I left the boys with a question to think about over the weekend. I asked them, "Can you prove that circles are polygons?"

Similes of The Week:
An angle is like two or more jets moving into a formation or peeling away from each other. vertex is the point where they start before pealing out.

Intersecting lines and parallel lines are like fraternal twins. They are in the same family, but have different characteristics.

A point is like the Holy Spirit you know they both exist, but you cannot see them.