Amazing Triangles

Tuesday, November 17th, 2009
We tried making 2D and 3D shapes out of marshmallows and cocktail sausage sticks - very sticky.
We made a square, cube, rectangle, cuboid, triangle, triangular prism, a pentagon and a hexagon. It wasn't possible to make a cylinder or sphere. We could see that the shapes made using triangles were the strongest - that's why you see so many triangle shapes in bridges and cranes. Next we made our own 3D shapes: with 3D jigsaw pieces, beads and connectors, flat triangles and squares, flat window shapes and with magnetic pieces. Each group had a different activity, and we will swop around for the rest of the week. We managed to make squares, triangles, rectangles, cubes, cuboids, a pentagonal prism, triangular prisms, triangular pyramids and square pyramids. We really are good at making and naming shapes.