Geoboard and automatic feedback
Task
Create a parallelogram on a virtual Geoboard and include automatic feedback by following the construction steps below.
Explore the construction...
Instructions
Note: If you're using the Mobile App make sure that the chosen Labeling option is New Points Only. You can change this by going to the Settings in the app's menu and then selecting General.
| 1. | | Switch to the Algebra View to create the Geoboard. |
| 2. | | Type into the Input Bar. |
| 3. | Change the style of the points of the sequence to empty gray dots. Note: All points of the sequence will change together. | |
| 4. | | Switch back to the Tools View. |
| 5. |  | Create points A, B, C and D on the Geoboard. |
| 6. |  | Select the Segment tool to create a quadrilateral by connecting the points A, B, C and D. |
| 7. | | Change the style of the points and segments. |
Try it yourself...
Instructions (continued)
| 8. | | Switch to the Algebra View to create a text for automatic feedback. Type(, "Parallelogram", "No Parallelogram") into the Input Bar to check if the opposite segments are parallel. If they are parallel the shown text will be Parallelogram. |
| 9. | | Switch back to the Tools View. |
| 10. |  | Move the corners to explore your construction. |