Come in READY TO LEARN!!! HW: Maintenance Sheet 23 Silently Complete the Wam 1-5 Volunteer to solve a problem

1. Make sense of problems and persevere in solving them. 4. Model with mathematics. 5. Use appropriate tools strategically. 7. Look for and make use of structure. 8. Look for and express regularity in repeated reasoning. MGSE8.G.1 Verify experimentally the properties of rotations, reflections, and translations: a. Lines are taken to lines, and line segments to line segments of the same length. b. Angles are taken to angles of the same measure. c. Parallel lines are taken to parallel lines. MGSE8.G.2 Understand that a two‐dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them. Understand congruence and similarity using physical models, transparencies or geometry software. I can use the properties of translations, rotations, and reflections on line segments, angles, parallel lines or geometric figures. I can show and explain two figures are congruent using transformations (explaining the series of transformations used) I can determine the new coordinate of a figure given a dilation, translation, rotation, or reflection. Learning Targets

Vocabulary Review: pre-image, image, transformation, translation Vocabulary Review: pre-image, image, transformation, translation *one word will not be used transformation A _________________is a change in the size, location or orientation of a figure. The resulting figure after a transformation is called the ___________ of the original figure. A ______________ is a transformation which slides each point of a figure the same distance and in the same direction. image translation

Choral Response image translation transformation A _________________is a change in the size, location or orientation of a figure. The resulting figure after a transformation is called the ___________ of the original figure. A ______________ is a transformation which slides each point of a figure the same distance and in the same direction. image translation

Translation Direction/Location Think-pair-share  Translation Direction/Location Add Subtract x coordinate   y coordinate left right down up

Translations Translate 4 units down, then Translate 3 Units right

Translations Translate 4 units down, then Translate 3 Units right

Translate the figure 7 units right and 3 units up. Example Translate the figure 7 units right and 3 units up. Image figure A’ B’ C’ Original figure A B C

Write a “rule” Start at original figure ABC 3 units up, 7 units right Right = positive x Up = positive y Rule: (x + 7, y + 3)

Task 1: Translation Practice Work Session Task 2: tinyurl.com/reflections102        http://tinyurl.com/translations102 I can use the properties of translations, rotations, and reflections on line segments, angles, parallel lines or geometric figures. I can show and explain two figures are congruent using transformations (explaining the series of transformations used) I can determine the new coordinate of a figure given a dilation, translation, rotation, or reflection. Rule (fill in blanks with + or – and how many up/ down/ left/ right: (x_____ , y_____ )   End of Class Summarization/ TOD: How do you feel about translation and reflection?