Grade D Transformations Rotation Be able to rotate
Grade D Transformations Rotation Be able to rotate a shape given instructions. Be able to describe a rotation.
Key Vocabulary Rotate Clockwise Anticlockwise Turn Full Turn Centre of Rotation
Rotation A rotation turns a shape about a fixed point. We need three things to rotate an object: 1) Direction Clockwise Anti-clockwise 2) Angle 90 o Quarter turn 180 o Half turn 270 o Three quarter turn 3) Centre of rotation - The point where you rotate from. 360 o Full turn
ns Rotate the shape 90˚ (a quarter turn) clockwise about the origin.
ns Rotate the shape 90˚ (a quarter turn) clockwise about the origin.
Rotations Rotate the shape clockwise 900 about the point (1, 2)
Rotations Rotate this shape anticlockwise 1800 about the point (-3, 2)
9 Problem Solving and Reasoning 8 7 C 6 5 A 4 3 D -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 2 1 0 -1 -2 -3 -4 -5 -6 Which shape shows the red shape rotated 90 o anticlockwise about the origin? -7 -8 0 1 2 3 4 5 6 B 7 8 9 10
9 Problem Solving and Reasoning 8 7 6 5 C 4 3 2 1 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 -1 A -2 1 2 3 4 D -3 -4 -5 -6 Which shape shows the red shape rotated 90 o clockwise about the origin? 0 -7 -8 B 5 6 7 8 9 10
9 Problem Solving and Reasoning 8 7 C 6 5 A 4 3 2 1 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 -1 D -2 -3 -4 -5 -6 Which shape shows the red shape rotated 180 o clockwise about the origin? -7 -8 0 1 2 3 4 5 6 B 7 8 9 10
Problem Solving and Reasoning Describe the transformation which takes shape A to B. A A B A rotation 90° clockwise about the origin (0, 0).
Problem Solving and Reasoning Describe the transformation which takes shape A to B. B A A rotation 180° about the point (1, 3).
Problem Solving and Reasoning Describe the transformation which takes shape A to B. x B A A rotation 270° clockwise about the point (4, -2).
Problem Solving and Reasoning Show that a reflection in the x-axis followed by a reflection in the y-axis is equivalent to a rotation of 180° about the origin.
- Slides: 14