In my experience, it's very helpful to build straw model. I keep revering back to the model when building the kids size one. This is a great exercise for kids to learn to make a model before making a real size.
Here what we did.
Tools: Masking tape, paper punch, brads, measuring tape, markers, scissors and really strong hands.
Materials: 130 pieces of really large paper.
1. Roll them to a thin pipes, tape them tight. Make a total of 65 pipes.
2. Measure 35 paper pipes to 71 cm, and 30 paper pipes 63 cm.
3. Cut them to size and group the according to the size. We will call them long and short.
4. Lay down 10 long pipes.
6. Get three short pipes and connect those to the short triangle. I see an imaginary "pentagon" forming. Please see picture.
7. OK.. now it gets a bit challenging. Get 4 longs and 1 shorts and connect those to the top of the top of the "pentagon". You can refer to the second picture of this blog to help visualize. http://bigibdesigns.blogspot.com/2014/12/winter-break-activity-build-geodesic.html
8. As you connecting the pentagon and the hexabon, the dome will start to form. I use brass brad to connect because it will allow the pipe to rotate. Prop them up with chairs or get more kids to help.
1. You can relate this with grit.
2. You can relate this with math. ( ratio, geometry, measuring)
3. You can relate this with the strongest shape in geometry ( triangle)
4. You can relate this with creativity, try to think outside the box. You can tell a story that you stranded in an island, can can only find short sticks and you need to make a shelter.
5. For moms, I think this is a fun activity together... Would you agree?