technology for students with special needs

I am familiar only with Hebrew software, but I would look for the following in any software purchased:
1) Ability to limit sections opened by student to those which he needs to work on
2) aqbility for teacher to see scores/ rate of correct answers
3) no funny "blooper" noises fro wrong answers (kids are likely to purposely answer wrong)
4) ability to change after how many tries (if at all) the correct answer is given
5) (related to #4) the inability to "guess" ones way to the end

For teaching math for kindergarden through 2nd grade level, I would HIGHLY recomend the Numicon system. The materials are expensive, but almost undestructible. They have a whiteboard computer software program to enhance whole class teaching, but it would be unneeded for individual to small groups.

I find that with my daughter (who has Down syndrome + ADHD)) , software is best as a review, not so much for initial learning, for which I find interactive learning better. HOWEVER, since there is a need for a lot of repetition for the material to be really remembered, I find software usefull.
[To anyone who might be looking here from Israel, Mattach's "Mishtamshim b'kesev" is VERY VERY good, and only has drawings of normally dressed people, making it quite appropriate for our students.]