Monday, May 15, 2017

Surface Area VS Volume

In math we are learning about Surface Area and Volume. I was talking to my peers this morning, asking them, "Which one is harder? Surface Area? Or Volume?" Four of seven students think that Surface Area is harder. This is why I am going to explain how to calculate Surface Area and Volume today.

Here is an example of a Three-Dimensional prism.
To find the Surface Area of this rectangular prism we first have to multiply the dimensions to find the area of each face. To find the Area of the top and bottom faces, we would multiply 4x3x2= 24. To find the area of one of the sets of faces, we would multiply 4x5x2= 40. To find the other set of faces, we would multiply 3x5x2= 30. Now, because we have all the calculations, we have to add the area of the faces together. 24+40+30= 94, so the Surface Area of the rectangular prism is 94 units squared.

To find the Volume of the prism we would multiply 3x4x5= 60, so the Volume of the rectangular prism is 60 units cubed.

It amazes me how the same three-dimensional prism has such different answers to their Surface Area, and Volume.

1 comment:

  1. Hey Kid,

    I love this post, too! Not only did you pick a topic to explain that YOU will need to remember in the future, you picked a topic that YOUR PEERS can learn from. That's super cool. And super helpful.

    I also love all the labels you used. I think they are accurate and will help you to search for posts in the future.

    My only suggestion would be to find some teaching videos on the web about these topics and include some links to those videos in your post. That way, if people want to go deeper, they will be able to.

    Super impressed,
    Mr. F