Semi-regular Tessellations: These are made up of more than one type of regular polygon. An example is a tessellation made up of both triangles and squares.
Irregular Tessellations: These are made up of irregular polygons, such as trapezoids or kites. These shapes still fit together without any gaps or overlaps.
Creating Tessellations
To create a tessellation, you can start with a single shape and then use it to fill the plane without any gaps or overlaps. This can be done by rotating, reflecting, and translating the shape to fit together with itself.
Real-World Examples
Tessellations can be found in many real-world objects and designs, such as tiles, quilts, pavement patterns, and even some animals' skin patterns.
Specify locations and describe spatial relationships using coordinate geometry and other representational systems.
Make and use coordinate systems to specify locations and to describe paths.
Connections to the Grade 5 Focal Points (NCTM)
Data Analysis: Students apply their understanding of whole numbers, fractions, and decimals as they construct and analyze double-bar and line graphs and use ordered pairs on coordinate grids.