This is the students’ version of the page. Log in above for the teachers’ version.
Part 1 – Rotation (easy)
Interactive GeoGebra activity—Rotation: easy
- Choose whether you want to rotate a triangle, a quadrilateral, or a pentagon.
- Move the blue points to change the shape and move the green point to adjust the centre of rotation.
- Note that you can click to show/ hide tracing paper and can also choose to show an “up” arrow on the tracing paper.
- You can also see how you might think about rotation using vectors, which might help you perform the rotation without using tracing paper.
- Note that you can also use the zoom buttons to zoom in or out.
- Drag the green slider to animate the rotation.
- Note that you can quicky return to a 0º rotation by clicking the green “Rotation nº” button above the slider.
Suggested activities:
Pick a shape and stick with it.
- Try putting the centre of rotation at a vertex of your shape. Drag the green slider and observe the rotation. Return back to a 0º rotation.
- Now try putting the centre of rotation on an edge of your shape, but not on a vertex. Drag the green slider and observe the rotation. Return back to a 0º rotation.
- Now try putting the centre of rotation inside your shape. Drag the green slider and observe the rotation.
With thanks to Jon Ingram, whose Transformations – Rotation worksheet is available here. Material modified to show image by default and embedded here under the CC-BY-SA 3.0 license.
Teacher resources for Part 1
Teachers: log in to access the following:
- Slides in PPTX (with click-to-reveal answers)
- Slides in PDF (one slide per page, suitable for importing into IWB software)
- Worksheet (with space for student work)
- Handout (slides with exercises only; 4 per page for reduced printing)
Part 2 – Rotation (hard)
Interactive GeoGebra activity—Rotation: hard
- Choose whether you want to rotate a triangle, a quadrilateral, or a pentagon.
- Move the blue points to change the shape and move the green point to adjust the centre of rotation.
- Note that you can click the buttons to show/ hide the axes and also show/ hide tracing paper. You can also choose to show an “up” arrow on the tracing paper.
- You can also see how you might think about rotation using vectors, which might help you perform the rotation without using tracing paper.
- Note that you can also use the zoom buttons to zoom in or out.
- Drag the green slider to animate the rotation.
- Note that you can quickly return to a 0º rotation by clicking the green “Rotation nº” button above the slider.
- Also note that you have the option to hide the centre of rotation, so you can present a source and its image without the centre visible, and ask students to locate the centre.
With thanks to Jon Ingram, whose Transformations – Rotation worksheet is available here. Material modified to show image by default and embedded here under the CC-BY-SA 3.0 license.
Teacher resources for Part 2
Teachers: log in to access the following:
- Slides in PPTX
- Slides in PDF (one slide per page, suitable for importing into IWB software)
- Worksheet (with space for student work)
- Handout (slides with exercises only; 4 per page for reduced printing)
Links to past exam questions
Teachers: log in to access these.
In the real world
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