Apps for Geography
Grab your favourite tablet and discover a new world of geographic learning...
For general purpose use, I can recommend the Google Apps for Education (Docs, Sheets, Slides, etc) and the Google Drive App. And, don't forget Google Earth - not quite as powerful as its desktop cousin, but certainly a must have.
For documents, I must admit to finding Pages and Keynote far more engaging to use than any other document or presentation application - and both are free as well.
Another free app fundamental to productivity is Microsoft OneNote – the best digital binder of notes, photos, PDFs, docs, etc.