Pretest Please complete the pretest for this standard on your own. Try to remember all you can from our first discussion of this topic.

Apply transformations (translations, reflections, dilations, and scale factors) to polygons to determine congruence, similarity, and symmetry. Know that images formed by translations, reflections, and rotations are congruent to the original shape. Create and verify tessellations of the plane using polygons. MA.912.G.2.4

1.Translation 1.Reflection 2.Rotation 3.Dilation 1.Tessellation 1.Symmetry LEQ: How do I apply to polygons to determine congruence, similarity, and symmetry? A.A transformation that turns a figure about a fixed point. A.A transformation in which the image is a mirror image of the other. A.A repeating pattern of figures that cover a plane without any gaps or overlaps. A.A transformation in which a figure is enlarged or reduced using a scale factor not equal to 0, without altering the center. A.The correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point. A.A transformation that maps all points of a figure the same distance in the same direction. Vocabulary: Draw an arrow from each statement to how it is written.

I do…

F’ (1, -5) Write the coordinates of F. Translate the x coordinate. Translate the y coordinate. (-1, -2) 2 units to the right 3 units down

I do… Y’ 90 degrees is a quarter turn. Clockwise means to the right. Y (3,-2) Y’ (-2, -3)

Sage and Scribe We do…

On the coordinate grid, draw a reasonable shape/figure using line segments. Then have your shoulder partner apply a transformation(translation, reflection, or rotation) to the given figure. We do…

You do… 1.What is the reflection of the point (5,8) over the line y=x? 2.If triangle XYZ is translated 4 units to the left and 3 units up. What are the coordinates of Y’? 3.Pentagon ABCDE is shown below on a coordinate grid. The coordinates of A, B, C, D, and E all have integer values. If pentagon ABCDE is rotated 90 degrees clockwise about point A to create pentagon A’B’C’D’E’, what will be the x-coordinate of E’?

1.What is the reflection of the point (5,8) over the line y=x? You do… Answer: (8, 5)

You do… 2.If triangle XYZ is translated 4 units to the left and 3 units up. What are the coordinates of Y’? Answer: (-1, 1)

You do… 3.Pentagon ABCDE is shown below on a coordinate grid. The coordinates of A, B, C, D, and E all have integer values. If pentagon ABCDE is rotated 90 degrees clockwise about point A to create pentagon A’B’C’D’E’, what will be the x-coordinate of E’? Answer: -3

Post Test Please complete the post test for this standard on your own. Do the best you can, hopefully you will show improvement over your pretest score.