Co:Writer - word prediction on most district Macs.
GarageBand - audio editing, create soundtracks, create podcasts, etc.
iMovie - video editing
Photo Booth - Easily record video messages for your students.
Photos - photo organization, simple editing, photo products (slideshows, books, etc)
ReadOutLoud - provides accessibility supports like text-to-speech. On most district Macs.
Reflector Teacher - download from Self Service to mirror your iOS device. - video | doc
Pages - word processing / desktop publishing
Keynote - presentations
Numbers - spreadsheet
Microsoft - word processing, spreadsheet, and presentation tools
Preview - view and work with PDFs & images
QuickTime Player - creates, plays, edits, and shares video and audio files.