Lesson 14 – Reflections Objective(s): Use the following resources to ensure that the Students will construct the reflection intended outcome and level of rigor of the definition by connecting any point on the standards are met. pre-image to is corresponding parts on Task(s) the reflected image and describe the TN Task Arc, Geometry - line segment’s relationship to the line of reflection (i.e., the line of reflection is the Task 3 – Reflect on This perpendicular bisector of the segment). (Use patty paper to differentiate for struggling learners.) Domain: Enduring Understanding(s) Lesson 9.2 –Translations, pp. 624 – 631 Vocabulary Cluster: Experiment with transformations in Proving and applying congruence provides a Use the following resources to ensure that the Translation vector the plane intended outcome and level of rigor of the basis for modeling situations geometrically. standards are met. Develop definitions of rotations, Task(s) reflections, and translations in terms of Essential Question(s) Writing in Math angles, circles, perpendicular lines, Select appropriate tasks from How can you represent a transformation in the Compare and contrast a translation and parallel lines, and line segments. coordinate plane? a reflection. Objective(s): Describe what a vector is and how it is used Students will construct the translation definition to define a translation. by connecting any point on the pre-image to its corresponding point on the translated image, Describe any similarities between the and connecting a second point on the meaning of translation as it us used in to its corresponding point on the geometry and the word’s meaning when translated image, and describe how the two used to describe the process of converting segments are equal in length, point in the words from one language to another. same direction, and are parallel. Domain: Enduring Understanding(s) Lesson 9.3 – Rotations, pp. 632 - 638 Vocabulary Cluster: Experiment with transformations in Proving and applying congruence provides a Lesson 9.3 Explore – Geometry Lab: Center of rotation, angle of rotation the plane basis for modeling situations geometrically. Rotations p. 631
Objective(s): Students will construct the reflection definition by connecting any point on the pre-image to is corresponding parts on the reflected image and describe the line segment’s relationship to the line of reflection (i.e., the line of reflection is the perpendicular bisector of the segment). Lesson 14 – Reflections Use the following resources to ensure that the intended outcome and level of rigor of the standards are met. Task(s) TN Task Arc, Geometry - Task 3 – Reflect on This (Use patty paper to differentiate for struggling learners.) Domain: Cluster: Experiment with transformations in the plane Develop definitions of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments. Enduring Understanding(s) Proving and applying congruence provides a basis for modeling situations geometrically. Essential Question(s) How can you represent a transformation in the coordinate plane? Objective(s): Students will construct the translation definition by connecting any point on the pre-image to its corresponding point on the translated image, and connecting a second point on the to its corresponding point on the translated image, and describe how the two segments are equal in length, point in the same direction, and are parallel. Lesson 9.2 –Translations, pp. 624 – 631 Use the following resources to ensure that the intended outcome and level of rigor of the standards are met. Task(s) Select appropriate tasks from Vocabulary Translation vector Writing in Math Compare and contrast a translation and a reflection. Describe what a vector is and how it is used to define a translation. Describe any similarities between the meaning of translation as it us used in geometry and the word’s meaning when used to describe the process of converting words from one language to another. Domain: Cluster: Experiment with transformations in the plane Enduring Understanding(s) Proving and applying congruence provides a basis for modeling situations geometrically. Lesson 9.3 – Rotations, pp. 632 - 638 Lesson 9.3 Explore – Geometry Lab: Rotations p. 631 Vocabulary Center of rotation, angle of rotation