ICT teacher handbook/Software applications
The Free and Open Source Software world has thousands of software applications which can be freely explored by teachers. Many of these tools can be used for learning different school subjects. A tool like Geogebra can help demonstrate many mathematical principles and support learning of concepts. Marble is a digital atlas that can be manipulated in ways that a print version cannot be. Stellarium converts your computer into a planetarium.
One advantage of many of these tools is that they do not present 'ready made content' but provide a canvas of menu options, which teachers can use, to create materials for learning and configure to address learning needs. A tool like Geogebra can be used to create resources. Other tools like Marble do not support creation of resource files, but lessons can be created using Learn_Screenshot| screen shots]] of the application and combining it with text. Videos can also be created.
You can also download many more software applications and you can search for these with keywords which could be your subject names. Engaging with multiple tools can broaden the understanding of how software applications can be used for subject teaching.