Today we took up the challenge of finding the surface area of a rectangular prism. After finding the surface area of the large crate in our learning commons last Friday, we tried it with new measurements. Here is the challenge from today's lesson:
Once students were able to find the surface area of the crate, we figured it out without the bottom. Finally, we did a question from EQAO to find surface area. Here is a video I made to help students understand how to find surface area as well. In the video, I show a formula for it. I found today that students understood the concept of finding surface area so well that they do not really need a formula to assist them. They understood that they had to find the area of each face and then add them together. They also understood that opposite faces were the same, so they didn't have to calculate all six faces, but rather just three of them, and then multiply by 2 for each. This is how the formula demonstrates it as well. Here is the video:
No comments:
Post a Comment
Note: only a member of this blog may post a comment.