1. Geogebra for mathematics
GeoGebra is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics and science from primary school to university level. GeoGebra is available on multiple platforms, with apps for desktops, tablets and web.
2. Stellarium for SST
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
3. PHeT for simulation
PhET is a suite of research-based interactive computer simulations for teaching and learning physics, chemistry, math, and other sciences. PhET simulations can be run online or downloaded for free from the PhET website.
4. Blog
A blog is a website where a person writes regularly about topics that interest them, usually with photographs and links to other websites they find interesting
