Reflect shapes
Q16: Interactive reflections resource: drag the yellow shape with the black outline and watch the reflections change. Select the shape using the buttons. Turn the labels and coordinates on or off.
Q17: Reflect shapes in a vertical or horizontal mirror line.
No answers
Q18: Reflect shapes in a diagonal mirror line. No answers
Rotate a triangle about a point
Q19: Interactive rotation resource: drag the yellow triangle and watch the transformations. Move the centre of rotation (the red point). Use the buttons to show or hide the rotations. Turn the labels and coordinates on or off.
The transparent triangles can be used as 'answers'. Select the triangle and drag it to where you think the rotation is going to be.
Reflect, rotate and translate a triangle
Q20: Interactive transformations resource: drag the yellow triangle and watch the transformations. Use the buttons to show or hide the translation, reflections or rotations. Turn the labels and coordinates on or off.
The transparent triangles can be used as 'answers'. Select the triangle and drag it to where you think the reflection or rotation is going to be.
Rotational symmetry and rotations about a point
Q24: Rotational symmetry and rotating shapes
Use the slider to determine the angle and select the shape using the shape buttons.
The shape's outline can be shown so that rotational symmetry can be investigated. Click on a shape button to reset the shape.
The shapes can be dragged about so that they can be rotated about a different corner, for example.
Hide or show the outline of the shape, its shadow, its eyes and the grid. Showing the eyes is useful to see which way up the shape is. The shadow shows from where the shape has been moved.
