# Difference between revisions of "Wallpaper Symmetry Exploration"

From EscherMath

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==Materials== | ==Materials== | ||

− | {{printable| | + | {{printable|Just the images [[Wallpaper Symmetry Exploration Images]]}} |

− | * Printed copy of the | + | * Printed copy of the images from this exploration. |

{{clear}} | {{clear}} | ||

{{printable|The Flow Chart [[Image:Wall-flow.pdf]]}} | {{printable|The Flow Chart [[Image:Wall-flow.pdf]]}} |

## Revision as of 11:45, 3 February 2012

**Objective:**
Learn to recognize the lattice in a wallpaper pattern. Learn to use the flow chart to identify wallpaper symmetry groups.

## Materials

- Printed copy of the images from this exploration.

- Copy of the flowchart

## Exploration

### Lattice

1. Mark the lattice of translations on this geometric pattern:

### Symmetries

2. For the following geometric wallpaper patterns

- Mark all centers of rotation symmetry. Clearly indicate the order of rotation.
- Identify and mark mirror lines and glide reflections.

A. | B. File:Honeycomb.svg |

C. | D. |

E. | F. |

### Symmetry Groups

3. Identify the symmetry group of each figure in the previous part.

4. For each of these sketches from Escher's regular division drawings, use the flow chart to identify the symmetry group of each pattern (ignore colors).

- Sketch #10 (Fish)
- Sketch #13 (Dragonflies)
- Sketch #17 (Parrots)
- Sketch #30 (Fish and boats)
- Sketch #85 (Fish, bats, lizards)

**Handin:**
This page with the geometric patterns marked, and all symmetry groups identified.

Instructor:Wallpaper Symmetry Solutions (Instructors only)