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Common Core Curriculum Map 2012-2013 Common Core Math II Common Core Unit Name: Transformations Unit Number: 13 Enduring Understanding: Students will use appropriate tools to represent transformations in the plane using software or transparencies. Students will look for and express regularity in repeated reasoning when they describe transformations as functions that take points in the plane as inputs & give other points as outputs. Students will look for and make use of structure as they compare transformations that preserve distance & angle to those that do not. Student will use modeling to describe the rotations & reflections that carry a polygon onto itself (rectangle, parallelogram, trapezoid, or regular polygon). Students will use modeling to define rotations, reflections & translations in terms of angles, circles, perpendicular lines, parallel lines & line segments. Students will use appropriate tools as they draw the transformed figure given rotation, reflection & translation & specify the sequence used to carry figure onto another. Students will reason abstractly and quantitatively as they verify experimentally the properties of dilations given by a center & a scale factor.(a.) Dilation takes a line not passing through the center of the dilation to a parallel line & leaves line passing through the center unchanged.(b.) Dilation of line segment is longer or shorter in the ratio given by the scale factor. Standard G.CO.2 2. Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch). G.CO.3,3. Given a rectangle, parallelogram, trapezoid, or regular polygon, describe the rotations and reflections that carry it onto itself. G.CO.4 4. Develop definitions of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments Essential Questions Can I identify the different types of transformations? Can I describe how the transformations of how a figure is carried onto itself? Can I compare the different transformations? Can I draw the different transformations given specific information? Can I use the properties of Pacing Guideline 7 days Key Academic Vocabulary image preimage isometry reflection line of symmetry rotation center of rotation angle of rotation rotational symmetry translation vector Common Core Curriculum Map 2012-2013 Common Core Math II dilations? G.CO.5 5. Given a geometric figure and a rotation, reflection, or translation, draw the transformed figure using, e.g., graph paper, tracing paper, or geometry software. Specify a sequence of transformations that will carry a given figure onto another. G.SRT.1 1. Verify experimentally the properties of dilations given by a center and a scale factor: a. A dilation takes a line not passing through the center of the dilation to a parallel line, and leaves a line passing through the center unchanged. b. The dilation of a line segment is longer or shorter in the ratio given by the scale factor. G.SRT.2 2. Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides. F.BF. 3 3. Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function. Suggested Resources by Unit Geometry, McDougal Littell, 2004 edition. Geometry Resources, McDougal Littell, 2004 edition. http://www.insidemathematics.org/index.php/tools-for-teachers (Problems of the month are excellent modeling problems.) http://secmathccss.wordpress.com/secmath1/sec-math-1-year-at-aglance/sec-1-problemassessment-tasks/s1-u5-tasks/ (Culminating activity in which students design Geometric art using transformations, circles and inscribed figures.) Location of these resources initial point terminal point component form glide reflection composition frieze pattern reduction enlargement translation dilation