IM 6.1.12 Lesson: What is Surface Area? - Activities 1 & 2
Here is a video about a cabinet.
Estimate an answer to the question: How many sticky notes would it take to cover the cabinet, excluding the bottom?
Earlier, you learned about a cabinet being covered with sticky notes. How could you find the actual number of sticky notes it will take to cover the cabinet, excluding the bottom? What information would you need to know?
Use the information you have to find the number of sticky notes to cover the cabinet. Show your reasoning.
Here is a rectangular prism built from 12 cubes:
It has six faces, but you can only see three of them in the sketch. It has a surface area of 32 square units.
The applet has 12 blocks, too. They are all in the same spot on the screen, like a hidden stack of blocks. You will always know where the stack is because it sits on a gray square. To use a block, drag the red point to move it. Click on the red points to change from left/right movement to up/down movement.
It has six faces, but you can only see three of them in the sketch. It has a surface area of 32 square units.
The applet has 12 blocks, too. They are all in the same spot on the screen, like a hidden stack of blocks. You will always know where the stack is because it sits on a gray square. To use a block, drag the red point to move it. Click on the red points to change from left/right movement to up/down movement.
Use all 12 cubes to build a different rectangular prism (with different edge lengths than shown in the prism here). You can turn the view to see all of the faces of your figure.
How many faces does your figure have?
What is the surface area of your figure in square units?