If you need a calculator on the spot, but do not have access, bring up this Google calculator and unit converter. You can also graph equations, and
geometry equations.
"Adapted Books (new URL link)
These are adapted books and materials created with Boardmaker, Writing with Symbols, Smartboard's Notebook, and MS PowerPoint. Some have also been converted to Adobe Acrobat (.pdf). If the Boardmaker files direct you to a page that states "Server Not Found" please right click on the link and select "Save Target as..." and you will be able to save the file. "
It's PC only, but is one of the most fully-featured, free apps that I've seen. It uses the SAPI 4 or 5 speech engines, opens HTML, Word, or PDF documents, will convert them all to MP3, Ogg Vorbis, WAV, or WMA files, and has a portable version that will r
Free text-to-speech application providing natural sounding voices to hear any written text spoken aloud (Documents, PDF files, webpages, Emails,etc.). Convert any written text into audio files such as MP3 or WAV
This site contains web tools organized into sectiopns including research, collaborative, quiz and poll, converters, creativity, image, drawing, and more!