home

Tutorial 18

=SURFACE AREA OF A SPHERE=

The surface area of a sphere is four times the area of a circle of the sphere. A great circle is any

Surface Area of a Sphere = 4 pi r 2
[] (Citation for formula)

=Image:= [] (citation of image)

=Practice:= []

=Using the formula correctly:= -Assuming the radius is 9...... 1st step: 9^2 = 81 2nd step: Multiply your answer by 4 3rd step: your answer should be 324 pi

=Using The area of a sphere in life:= -The surface area is used frequently for many astronomers, or certain people who study planets (stars ect.) such as earth and others within the solar system. Also, telescopes such as the MAGIC telescope in the Canary Islands have to have specific surface areas for it to do its job correctly. [|http://www.astronomy.com/asy/default.aspx?c=a&id=2204] (More information about the MAGIC telescope)

Podcast: media type="file" key="aust.mp3" Reflection:

1. My original score was 34.03 out of 100 from mrs jennings and a 12 from the students at the university. I feel that the scores are about right because there was a lack of the objects needed in order to get a better score. I think the comments by the students were not very helpful because they pretty much stated that my podcast was bad. They called my podcast, "useless", and that is not helpful constructive criticism that i could build off of.

2. My actual podcast that i have recorded of myself is actually downloaded and explains much more of my wiki site than it did last time. Also, i had added in a section explaining why and how the surface area of a sphere relates to real life situations. i have and example of the formula for the surface area of a sphere that is used correctly. A detailed picture has been downloaded and practice problems for using the formula correctly has also been added to my site. This is different from the original site i had created cause all of the objects that are required to be on it are actually downloaded onto the new and improved site i have created.

3. I would tell next years students to make sure that they go to the teacher for help and how to download information onto the wiki site correctly. also, i would explain to them that it is critical that they have all of the requirements needed to form a reliable site. use your time well and ask questions if you are confused about anything. When designing your project, the upcoming students should make there site organized so everyone can understand it and use it as reliable information.

4. I have learned that technology is extremely helpful if you use it correctly and for the right reasons. i have become much better at using the technology that my generation and generations to come will have to deal with for a long time.