Reflections: Isometric Within the shape distances, angle measures, parallelism, collinearity are all preserved. – Orientation is reversed. Rotations: Isometric Within the shape distances, angle measures, parallelism, collinearity are all preserved. – Orientation is preserved. Translations: Isometric Within the shape distances, angle measures, parallelism, collinearity are all preserved. – Orientation is preserved. In to help student understand the rules for different transformations, it is useful to provide each student with a coordinate grid. Have students pick points on the coordinate plane to create a polygon. Allow students to work in groups to determine the rules for the following transformations Reflection over the y-axis Reflection over the x-axis Rotation by 90° about the origin Rotation by 180° about the origin Rotation by 270° (-90°) about the origin Reflection over a vertical line = x c Reflection over a horizontal line = y b Reflection over the = line y x Reflection over the = - line y x Be sure students understand when a translation is preformed along a vector, it creates parallel lines. is translated along
Reflections: Isometric – Within the shape distances, angle measures, parallelism, collinearity are all preserved. Orientation is reversed. Rotations: Isometric – Within the shape distances, angle measures, parallelism, collinearity are all preserved. Orientation is preserved. Translations: Isometric – Within the shape distances, angle measures, parallelism, collinearity are all preserved. Orientation is preserved. In to help student understand the rules for different transformations, it is useful to provide each student with a coordinate grid. Have students pick points on the coordinate plane to create a polygon. Allow students to work in groups to determine the rules for the following transformations Reflection over the y-axis Reflection over the x-axis Rotation by 90° about the origin Rotation by 180° about the origin Rotation by 270° (-90°) about the origin Reflection over a vertical line x = c Reflection over a horizontal line y = b Reflection over the y = x line Reflection over the y = - x line Be sure students understand when a translation is preformed along a vector, it creates parallel lines. is translated along
resource_6727.docx