I’m a Singaporean teacher using Geogebra to create Physics simulations. The Apps I've created are meant for Singapore's GCE [url=https://www.geogebra.org/m/z5nfs8qd]O-level[/url] and [url=https://www.geogebra.org/m/dgedzmz3]A-level[/url] syllabi. For other simulations, resources, videos, etc. you may visit my blog at [url=http://www.physicslens.com]www.physicslens.com[/url]