Box shapes: faces, edges & vertices
Japanese school year: Elementary 2
What you learn
Learn about the components of boxes by examining the shapes and numbers of their faces, edges, and vertices. This knowledge helps when assembling paper crafts, packaging boxes, and visualizing unfolded nets. Prior understanding of rectangles, squares, and right angles will make it easier to grasp these three-dimensional spatial structures.
Key points
This describes a box shape (cuboid). It has 6 faces, 12 edges, and 8 vertices, and opposite faces have the exact same size.
This describes a cube shape. All 6 faces are the same square, and all 12 edges have the exact same length.
An unfolded flat drawing of a box is called a net. Edges that join together when folded have the same length.
Choose a set to practice.