Audacity - Installed on school desktops and laptops. You can download free here. Use for recording audio files. Great for recording narration for use with any presentation that allows mp3 files. Record multiple tracks. Export recording as mp3 by installing the free Lame MP3 Encoder (follow instructions on the download site for this add-on)
Read and Write for Google Chrome - Chrome extension automatically added to student chrome browser (when students are logged in with their school Google accounts) This extension will read text on most websites and Google docs. Highlight text you want read, or let it read the entire page.