How can I find out about the computer-based Extend and Challenge Activities that Saxon offers?
I went to the Saxon Math publisher's site, and then selected Technology and then K-3. It lists Extend and Challenge Activities as one of their technology products. Here's a link
http://saxonpublishers.hmhco.com/en/primary_technology.htm I have a call in to Saxon's "resident expert" on this as there isn't an online demo to which anyone could point me. Her voicemail said she's in the midst of a big project and has limited time to reply to messages.

When I hear back from her, I'll let you know what she said. I also have a note into the resource teacher at school to find out if the school uses this already and I just don't know about it, or if they're open to using it, or....
If you end up getting any info from your school on it, please let me know.