Try some of these low-tech ideas:

Time Timer:  A visual timer targeted at students who benefit from a visual reminder of time left, or become over-anxious at the anticipation of an auditory "ding".  Available from www.timetimer.com

Highlighter Tape:  Removalbe highlighter -- perfect for highlighting in textbooks or library books, or removing when decisions about important information have changed.  Use to highlight vocabulary, main ideas and supporting details, parts of speech, correct math solutions, etc.  Available from www.therapyshoppe.com

EZC Reader:  Use to track while reading.  Available from www.reallygoodstuff.com or make your own with index cards and colored laminating/transparancy film pieces.

Carbonless Notebook:  One student in the class can take notes, then share the "carbon" copy with another person who has difficulty taking good notes.  Available from www.mayerproducts.com

Misspeller's Dictionary:  Look up words using their "phonetic" misspelling.  Available from www.walmart.com or www.amazon.com

Fidget Pencils:  For those students who need to quietly fidget while listening or working.  Available from www.therapyshoppe.com

Neo by AlphaSmart:  Portable word processor for students who can keyboard more successfully than writing.  Also great for very mobile "computer" work.  Runs on rechargable or AA batteries and automatically saves.  Available from www.alphasmart.com

 Digital Recorder:  For students who need to dictate some of their work, this allows for a more independent alternative than dictating to an adult.  Students can dictate homework, test answers, study guide answers, vocabulary definitions, etc.  Available from local office supply stores or www.officedepot.com