We learned that OBJECTS are made out of MATERIALS, and that materials have different properties.
We learned that there are 3 main purposes for structures
1) To SUPPORT a load (chairs, desks, shelves)
2) To SPAN a gap (bridge, doors, windows, stairs)
3) To ENCLOSE or CONTAIN a person or object (Houses, bins, backpacks)
We built some structures
We learned that FASTENERS hold materials or structures together.
We learned the best way to build a structure so that it will be strong:
We worked as a group to build stools!
We learned that cylinders are the strongest shapes for supporting structures, and that many cylinders together are very strong.