Transformations Translations Reflections and Rotations http www pinterest

Transformations, Translations, Reflections and Rotations! http: //www. pinterest. com/pin/401453754256880154/ Veronica Ho-Gland

TEKS: Grade 2 (2. 7) Geometry and spatial reasoning. The student uses attributes to identify two- and three-dimensional geometric figures. The student compares and contrasts two- and threedimensional geometric figures or both. The student is expected to: (A) Describe attributes (the number of vertices, faces, edges, sides) of two- and threedimensional geometric figures such as circles, polygons, spheres, cones, cylinders, prisms, and pyramids, etc. ; (B) Use attributes to describe how 2 two-dimensional figures or 2 three-dimensional geometric figures are alike or different; and (C) Cut two-dimensional geometric figures apart and identify the new geometric figures formed. (2. 8) Geometry and spatial reasoning. The student recognizes that a line can be used to represent a set of numbers and its properties. The student is expected to use whole numbers to locate and name points on a number line. http: //lead 4 ward. com/docs/2015 resources/TEKS_Snapshot_Math_New_TEKS_July_2014_ Grade_02. pdf Revised August 2014 (this TEK is not taught until 8 th Grade at this time)

Transformation • Moving a shape so that it is in a different position, but still has the same size, area, angles and line lengths. • Turn, flip or slide are the basic moves to use with Transformation.

Examples of Transformations Rotation Reflection Translation Turn! Flip! Slide!

Interactive link to transformed figure Click on the link above to try your hand at transformation! http: //www. ixl. com/math/grade-2/flip-turn-and-slide

Translation • Moving a shape, without rotating or flipping it. • "Sliding". • The shape still looks exactly the same, just in a different place.

Example of Translation Every point of the shape must move the same distance and in the same direction.

Interactive translated figure Click on the link above to try your hand at translation! http: //goo. gl/Rmmcjy

Reflection • In a reflection, every point is the same distance from the central line or Mirror Line! • The Mirror Line can be in any direction. • The Reflection has the same size as the original image. • The Reflection faces the other way. • A Reflection is a flip over a line.

Example of a Reflection A Reflection is a flip over a line and faces the other way.

Interactive reflected figure Click on the link above to try your hand at reflection! http: //goo. gl/8 j. Fihk

Rotation • "Rotation" means turning around a center • The distance from the center to any point on the shape stays the same. • Every point makes a circle around the center.

Example of Rotation Here a triangle is rotated around the point marked with a "+"

Interactive rotated figure Click on the link above to try your hand at rotation! http: //www. asset. asu. edu/new/mathactive/lessons/195/lesson 195. swf