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## Welcome to Ms. Samara’s Common Core II Class!

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**Classroom Norms and Expectations**Warm Ups Homework Stamp Sheets Group Work and Roles School Supplies Other Expectations School Policies Food/Drink Emergencies**Remind 101**To get reminders and announcements text @mssamara1 to 919-800-0736**Group Roles**• Time Keeper/Recorder • Keep track of time • Record Group answers • Resource Manager • Get supplies for group • Reader • Read instructions OUTLOUD or assign readings • Spy Monitor • When your group is stuck, check with other groups or teacher**Unit 1 – Day 1**Introduction to Transformations And Translations**Warm Up**• Matching Card Game • Each of you has been handed a card with a figure plotted on a coordinate plane. • Find your classmate who has the “matching” figure. • Once you find your “match”, sit together and write a quick description of how your figures have been changed. Be as descriptive as possible! Use the Monday block of the Warm Up sheet on a desk • Once all matches have been found, you and your partner will describe your cards to the class. End**Transformations**Definition: A Transformation is a change in the position, size, or shape of a geometric figure.**Investigation**In this lesson, you will learn how coordinates can be used to transform shapes. You will investigate coordinate representation of rigid transformations that provide a way to reposition figures in a plane without changing the shape or the size of the figures.**Translation**Definition: A Translation (slide) is a transformation that moves points the same distance and in the same direction. A translation in the coordinate plane is described by a vector.**Preimage and Image**• The preimageis the original figure. • Denoted as A • The imageis the figure after a transformation. • Denoted as A’ or “A prime” (This is called Prime Notation)**Group Work**A translation, or sliding motion, is determined by distance and direction. By looking carefully at a simple shape and its translated image, you can discover patterns relating the coordinates of the shape and the coordinates of its image. Time Keeper: 15 minutes Resource Manager: Problem 2 and 3 Worksheet (1/member)**Question 2**• v**Question 2**• v**General Rule**Compare the transformation rules you developed for Part d of Problem 2 and for Parts c and e of Problem 3. As a group, write a general rule that tells how to take any point (x, y) and find its translated image if the preimage is moved horizontally h units and vertically k units. Compare your rule with other groups and resolve any differences.**General Rule**(x, y) (x + h, y + k) Describes a translation of hhorizontal units (+ Right, - Left) k vertical units (+ Up, - Down)**Example**Write a description and rule for the following translation**Vector Notation**• Vector notation is another way to write rules of translations. • A vector is written as • h = left/right • k = up/down**Marching Band Activity**Resource Manager: Grab a worksheet for each group member. Reader: Read instructions out loud to group. Time Keeper: You have _______ minutes**Assessment**QuickWrite: On a small piece of paper, summarize what you learned today in 2 minutes. You may include pictures or symbols if needed. Post on board when finished. Homework: Worksheet Fill out Info Sheet with parent/guardian. 2:00 1:59 1:58 1:57 1:56 1:55 1:54 1:53 1:52 1:51 1:50 1:49 1:48 1:47 1:46 1:45 1:44 1:43 1:42 1:41 1:40 1:39 1:38 1:37 1:36 1:35 1:34 1:33 End 1:32 1:30 1:29 1:28 1:27 1:26 1:25 1:24 1:23 1:22 1:21 1:20 1:19 1:18 1:17 1:16 1:15 1:14 1:13 1:12 1:11 1:10 1:09 1:08 1:07 1:06 1:05 1:04 1:03 1:02 1:01 1:00 0:59 0:58 0:57 0:56 0:55 0:54 0:53 0:52 0:51 0:50 0:49 0:48 0:47 0:46 0:45 0:44 0:43 0:42 0:41 0:40 0:39 0:38 0:37 0:36 0:35 0:34 0:33 0:32 0:31 1:31 0:30 0:28 0:27 0:26 0:25 0:24 0:23 0:22 0:21 0:20 0:19 0:18 0:17 0:16 0:15 0:14 0:13 0:12 0:11 0:10 0:09 0:08 0:07 0:06 0:05 0:04 0:03 0:02 0:01 0:29 2:00