Visit this Colombian classroom to see an example of how to use technology to build understanding of connections in quadratic functions and equations. The teacher has three careful examples that illustrate the role that the discriminant plays. The teacher uses a graphing software to capture its effect, carefully illustrating the different quadratic functions. At the end, the teacher facilitates a clear recap of the key points. Watch out for how the teacher:
- Compares different visual representations on the board
- Makes connections between the number of solutions and visual representation
- Moves students towards a generalisation from the formula
How do you use connections in your own classroom?
The featured software in this video is GeoGebra, Copyright © International GeoGebra Institute, 2013. GeoGebra software and its terms of service and licensing can be found at: https://www.geogebra.org. This video does not constitute an approval or endorsement of the GeoGebra software.