to make the bag you will need to make 5 panels,
the larger panels should be a whole strip by a whole strip. you will nedd two of these.
the side and bottom panels should be a half strip but a whole strip, you will need three of these.
Once you have made all of these panels you can tape them together.
I havent made a handle, so you will have to figure it out yourself. good luck. If you have any questions, feel free to ask.