I was tasked with using marshmallows and toothpicks to construct 3D shapes and record the results. By visualizing the shapes in my head and referring to clues, I built models of a pentagonal pyramid, hexagonal pyramid, octagonal prism, pentagonal prism, square pyramid, and cube, noting the number of faces, edges, and vertices of each. While it was enjoyable to identify faces on 3D objects, constructing them with food items was challenging and left me with sticky fingers. This experience increased my understanding of 3D shapes but also revealed areas for further investigation, such as 2D nets.

1. 3D Construction Challenge
My task was to use marshmallows and toothpicks to make 3D shapes and write my
results on the sheet. I don’t know some questions so I checked the 3D shapes and
imagine in my head.
I used toothpicks to represent edges and marshmallows to represent vertices.
Based on the clues given, I solved the problems by creating the following models:
Pentagonal pyramid, which had 6 faces, 10 edges and 6 vertices.
Hexagonal pyramid, which had 7 faces, 12 edges and 7 vertices.
Octagonal prism, which had 10 faces, 24 edges and 16 vertices.
Pentagonal prism, which had 7 faces, 15 edges and 10 vertices.
Square pyramid, which had 5 faces, 8 edges and 5 vertices.
Cube, which had 6 faces, 10 edges and 8 vertices.
It was fun to find faces on 3D shapes. It was challenging to make 3D shapes with
marshmallows and toothpicks. This task made me think about hungry, headache and
feel like I have candy fingers.During this task, I learned more about 3D shapes.I still
have questions about 3D shapes so next, I would like to investigate 2D nets.