8/21 8th Grade Period 6

Date: 8/21

Essential Question:How do I show congruence and similarity using physical models, transparencies, and geometric software?
Opening:Finding Rotations With Formulas Only
Work Session:Finding Dilation
Closing: Ticket Out The Door

Vocabulary: transformation, rotation, dilation

Standard:Describe the effect of dilations, translations, rotations, and reflections on two-dimentional figures using coordinates.
Homework:

1.59% of 4
2. -1,234 + -3,009
3. 679 – (-925)
http://www.virtualnerd.com/pre-algebra/geometry/transformations-symmetry/rotating-figures/rotate-90-degrees-about-origin

http://www.mathwarehouse.com/transformations/dilations/dilations-in-math.php