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.

Vocabulary

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.

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

Examples of Tessellations

Examples of Reflection

Examples of Tessellations

Examples of Rotation

Examples of Tessellations

Examples of Translation

Examples of Tessellations

Examples of Tessellations

Examples of Tessellations

Prepare a PresentationSuppose you wanted to cover a floor with tiles. You could cover it with square tiles, since squares fit together without leaving any gaps

Work Time

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

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.

Work Time