[header] How to build a pyramid for school [title] Gather your supplies. [step] This cardboard pyramid looks like a realistic flat-sided pyramid, but it's lightweight and doesn't take very long to put together. You probably have most of the supplies on hand already. 
For this project you will need : [substeps] A large flattened cardboard box or piece of cardboard ruler pencil scissors hot glue gun and sticks brown or black permanent marker white school glue paint brush sand [title] Cut out a cardboard square. [step] Cut out a square of cardboard that is 14 inches (35.5 cm) by 14 inches (35.5 cm).