1. Vocabulary
Translation: Moving a shape, without rotating or flipping it. "Sliding". The shape still looks exactly the same, just in a different place.
Reflection: An image or shape as it would be seen in a mirror.
Rotation: an object moving in a circle about a fixed point.

3. Congruence and Rigid Motion (Transformations)
Objective: Given an understanding of geometric shapes, students will describe sizes, positions, and orientations of shapes under informal transformations such as flips, turns, slides, and scaling by creating tessellations.
“In English”: Students create ______________ to explore informal ______________ such as reflections, rotations, and translations.

4. What is a Tessellation?
A tessellation is any pattern made of repeating shapes that covers a surface completely without overlapping or leaving any gaps.
Examples:
- A Checkered Board
- A Brick Wall
A tessellations combines the creativity of an art project with the challenge of solving a puzzle

5. Examples of Reflection
Examples of Tessellations
Examples of Reflection

6. Examples of Tessellations
Examples of Rotation

7. Examples of Translation
Examples of Tessellations
Examples of Translation

8. Examples of Tessellations

9. Examples of Tessellations

10. Examples of Tessellations

11. Prepare a Presentation
Work Time
Prepare a Presentation
Suppose you wanted to cover a floor with tiles. You could cover it with square tiles, since squares fit together without leaving any gaps
In this activity, you’re going to transform a rectangle into a more interesting shape, then make a tessellation by repeating that shape over and over again
Everybody will do two! One Translation, and one
Reflection
Rotation

12. Work Time Choose your own style
Log onto File Cabinet Week 3, and click on
Reflection Tessellation
Rotation Tessellation
Follow directions and ask the for any help.