STEM education is currently a major concern in many primary and secondary schools in Hong Kong.[br]Instead of the common consideration of additional learning experience such as programming robots with specific tools, we try to promote the use of GeoGebra which should have a closer integration and greater flexibility in our curriculum. We see the great potential of GeoGebra, as well as challenges, in this area.[br][br]Some exemplars we have proposed:[br][url=https://www.geogebra.org/m/KPeSJdQZ]https://www.geogebra.org/m/KPeSJdQZ[/url]